What’s the state of soot pollution where you live?

Soot — also known as fine particulate matter or PM2.5 — causes death and serious health harms. Many areas lack air monitors. Rigorous monitoring is critical for protecting public health. Read the full story.

The soot standard measures average soot levels over one year. The new soot standard is 9 micrograms per cubic meter. It was previously set at 12µg/m3.

The Soot Standard: Measures average soot levels over one year. Set at 9 micrograms per cubic meter (µg/m3).

Alabama
Autauga County
No air monitoring
Alabama
Baldwin County
7.5µg/m3
Alabama
Barbour County
No air monitoring
Alabama
Bibb County
No air monitoring
Alabama
Blount County
No air monitoring
Alabama
Bullock County
No air monitoring
Alabama
Butler County
No air monitoring
Alabama
Calhoun County
No air monitoring
Alabama
Chambers County
No air monitoring
Alabama
Cherokee County
No air monitoring
Alabama
Chilton County
No air monitoring
Alabama
Choctaw County
No air monitoring
Alabama
Clarke County
No air monitoring
Alabama
Clay County
6.8µg/m3
Alabama
Cleburne County
No air monitoring
Alabama
Coffee County
No air monitoring
Alabama
Colbert County
No air monitoring
Alabama
Conecuh County
No air monitoring
Alabama
Coosa County
No air monitoring
Alabama
Covington County
No air monitoring
Alabama
Crenshaw County
No air monitoring
Alabama
Cullman County
No air monitoring
Alabama
Dale County
No air monitoring
Alabama
Dallas County
No air monitoring
Alabama
DeKalb County
7.2µg/m3
Alabama
Elmore County
No air monitoring
Alabama
Escambia County
No air monitoring
Alabama
Etowah County
8.2µg/m3
Alabama
Fayette County
No air monitoring
Alabama
Franklin County
No air monitoring
Alabama
Geneva County
No air monitoring
Alabama
Greene County
No air monitoring
Alabama
Hale County
No air monitoring
Alabama
Henry County
No air monitoring
Alabama
Houston County
No air monitoring
Alabama
Jackson County
No air monitoring
Alabama
Jefferson County
8.4µg/m3
Alabama
Lamar County
No air monitoring
Alabama
Lauderdale County
No air monitoring
Alabama
Lawrence County
No air monitoring
Alabama
Lee County
No air monitoring
Alabama
Limestone County
No air monitoring
Alabama
Lowndes County
No air monitoring
Alabama
Macon County
No air monitoring
Alabama
Madison County
7.1µg/m3
Alabama
Marengo County
No air monitoring
Alabama
Marion County
No air monitoring
Alabama
Marshall County
No air monitoring
Alabama
Mobile County
7.9µg/m3
Alabama
Monroe County
No air monitoring
Alabama
Montgomery County
No air monitoring
Alabama
Morgan County
7.4µg/m3
Alabama
Perry County
No air monitoring
Alabama
Pickens County
No air monitoring
Alabama
Pike County
No air monitoring
Alabama
Randolph County
No air monitoring
Alabama
Russell County
9.1µg/m3
Alabama
St. Clair County
No air monitoring
Alabama
Shelby County
No air monitoring
Alabama
Sumter County
No air monitoring
Alabama
Talladega County
No air monitoring
Alabama
Tallapoosa County
No air monitoring
Alabama
Tuscaloosa County
7.6µg/m3
Alabama
Walker County
No air monitoring
Alabama
Washington County
No air monitoring
Alabama
Wilcox County
No air monitoring
Alabama
Winston County
No air monitoring
Alaska
Aleutians East Borough
No air monitoring
Alaska
Aleutians West Census Area
No air monitoring
Alaska
Anchorage Borough
5.6µg/m3
Alaska
Bethel Census Area
No air monitoring
Alaska
Bristol Bay Borough
No air monitoring
Alaska
Denali Borough
No air monitoring
Alaska
Dillingham Census Area
No air monitoring
Alaska
Fairbanks North Star Borough
12.2µg/m3
Alaska
Haines Borough
No air monitoring
Alaska
Juneau Borough
4.9µg/m3
Alaska
Kenai Peninsula Borough
No air monitoring
Alaska
Ketchikan Gateway Borough
No air monitoring
Alaska
Kodiak Island Borough
No air monitoring
Alaska
Lake and Peninsula Borough
No air monitoring
Alaska
Matanuska-Susitna Borough
4.5µg/m3
Alaska
Nome Census Area
No air monitoring
Alaska
North Slope Borough
No air monitoring
Alaska
Northwest Arctic Borough
No air monitoring
Alaska
Prince of Wales-Outer Ketchikan Census Area
No air monitoring
Alaska
Sitka Borough
No air monitoring
Alaska
Skagway-Yakutat-Angoon Census Area
No air monitoring
Alaska
Skagway-Hoonah-Angoon Census Area
No air monitoring
Alaska
Southeast Fairbanks Census Area
No air monitoring
Alaska
Valdez-Cordova Census Area
No air monitoring
Alaska
Wade Hampton Census Area
No air monitoring
Alaska
Wrangell-Petersburg Census Area
No air monitoring
Alaska
Yakutat Borough
No air monitoring
Alaska
Yukon-Koyukuk Census Area
No air monitoring
Arizona
Apache County
No air monitoring
Arizona
Cochise County
No air monitoring
Arizona
Coconino County
No air monitoring
Arizona
Gila County
No air monitoring
Arizona
Graham County
No air monitoring
Arizona
Greenlee County
No air monitoring
Arizona
La Paz County
4.1µg/m3
Arizona
Maricopa County
10.5µg/m3
Arizona
Mohave County
No air monitoring
Arizona
Navajo County
No air monitoring
Arizona
Pima County
6.1µg/m3
Arizona
Pinal County
12.4µg/m3
Arizona
Santa Cruz County
10.2µg/m3
Arizona
Yavapai County
No air monitoring
Arizona
Yuma County
8.9µg/m3
Arkansas
Arkansas County
7.5µg/m3
Arkansas
Ashley County
No air monitoring
Arkansas
Baxter County
No air monitoring
Arkansas
Benton County
No air monitoring
Arkansas
Boone County
No air monitoring
Arkansas
Bradley County
No air monitoring
Arkansas
Calhoun County
No air monitoring
Arkansas
Carroll County
No air monitoring
Arkansas
Chicot County
No air monitoring
Arkansas
Clark County
No air monitoring
Arkansas
Clay County
No air monitoring
Arkansas
Cleburne County
No air monitoring
Arkansas
Cleveland County
No air monitoring
Arkansas
Columbia County
No air monitoring
Arkansas
Conway County
No air monitoring
Arkansas
Craighead County
No air monitoring
Arkansas
Crawford County
No air monitoring
Arkansas
Crittenden County
7.8µg/m3
Arkansas
Cross County
No air monitoring
Arkansas
Dallas County
No air monitoring
Arkansas
Desha County
No air monitoring
Arkansas
Drew County
No air monitoring
Arkansas
Faulkner County
No air monitoring
Arkansas
Franklin County
No air monitoring
Arkansas
Fulton County
No air monitoring
Arkansas
Garland County
No air monitoring
Arkansas
Grant County
No air monitoring
Arkansas
Greene County
No air monitoring
Arkansas
Hempstead County
No air monitoring
Arkansas
Hot Spring County
No air monitoring
Arkansas
Howard County
No air monitoring
Arkansas
Independence County
No air monitoring
Arkansas
Izard County
No air monitoring
Arkansas
Jackson County
No air monitoring
Arkansas
Jefferson County
No air monitoring
Arkansas
Johnson County
No air monitoring
Arkansas
Lafayette County
No air monitoring
Arkansas
Lawrence County
No air monitoring
Arkansas
Lee County
No air monitoring
Arkansas
Lincoln County
No air monitoring
Arkansas
Little River County
No air monitoring
Arkansas
Logan County
No air monitoring
Arkansas
Lonoke County
No air monitoring
Arkansas
Madison County
No air monitoring
Arkansas
Marion County
No air monitoring
Arkansas
Miller County
No air monitoring
Arkansas
Mississippi County
No air monitoring
Arkansas
Monroe County
No air monitoring
Arkansas
Montgomery County
No air monitoring
Arkansas
Nevada County
No air monitoring
Arkansas
Newton County
No air monitoring
Arkansas
Ouachita County
No air monitoring
Arkansas
Perry County
No air monitoring
Arkansas
Phillips County
No air monitoring
Arkansas
Pike County
No air monitoring
Arkansas
Poinsett County
No air monitoring
Arkansas
Polk County
7.8µg/m3
Arkansas
Pope County
No air monitoring
Arkansas
Prairie County
No air monitoring
Arkansas
Pulaski County
8.8µg/m3
Arkansas
Randolph County
No air monitoring
Arkansas
St. Francis County
No air monitoring
Arkansas
Saline County
No air monitoring
Arkansas
Scott County
No air monitoring
Arkansas
Searcy County
No air monitoring
Arkansas
Sebastian County
No air monitoring
Arkansas
Sevier County
No air monitoring
Arkansas
Sharp County
No air monitoring
Arkansas
Stone County
No air monitoring
Arkansas
Union County
No air monitoring
Arkansas
Van Buren County
No air monitoring
Arkansas
Washington County
7.5µg/m3
Arkansas
White County
No air monitoring
Arkansas
Woodruff County
No air monitoring
Arkansas
Yell County
No air monitoring
California
Alameda County
9.4µg/m3
California
Alpine County
No air monitoring
California
Amador County
No air monitoring
California
Butte County
11.6µg/m3
California
Calaveras County
9µg/m3
California
Colusa County
10.5µg/m3
California
Contra Costa County
10µg/m3
California
Del Norte County
No air monitoring
California
El Dorado County
No air monitoring
California
Fresno County
17.5µg/m3
California
Glenn County
No air monitoring
California
Humboldt County
7.4µg/m3
California
Imperial County
11.1µg/m3
California
Inyo County
8.8µg/m3
California
Kern County
18.8µg/m3
California
Kings County
16.6µg/m3
California
Lake County
6.6µg/m3
California
Lassen County
No air monitoring
California
Los Angeles County
13.4µg/m3
California
Madera County
13.2µg/m3
California
Marin County
7.5µg/m3
California
Mariposa County
No air monitoring
California
Mendocino County
11.1µg/m3
California
Merced County
12.3µg/m3
California
Modoc County
No air monitoring
California
Mono County
19.5µg/m3
California
Monterey County
6.9µg/m3
California
Napa County
No air monitoring
California
Nevada County
8.9µg/m3
California
Orange County
11.2µg/m3
California
Placer County
10.9µg/m3
California
Plumas County
17µg/m3
California
Riverside County
13.6µg/m3
California
Sacramento County
11.7µg/m3
California
San Benito County
6.5µg/m3
California
San Bernardino County
14µg/m3
California
San Diego County
10µg/m3
California
San Francisco County
8.2µg/m3
California
San Joaquin County
12.3µg/m3
California
San Luis Obispo County
8.7µg/m3
California
San Mateo County
7.6µg/m3
California
Santa Barbara County
8µg/m3
California
Santa Clara County
10.7µg/m3
California
Santa Cruz County
7.2µg/m3
California
Shasta County
9.3µg/m3
California
Sierra County
No air monitoring
California
Siskiyou County
11.6µg/m3
California
Solano County
9.4µg/m3
California
Sonoma County
7.3µg/m3
California
Stanislaus County
14.3µg/m3
California
Sutter County
13.8µg/m3
California
Tehama County
9.9µg/m3
California
Trinity County
No air monitoring
California
Tulare County
18.4µg/m3
California
Tuolumne County
No air monitoring
California
Ventura County
7.8µg/m3
California
Yolo County
No air monitoring
California
Yuba County
No air monitoring
Colorado
Adams County
No air monitoring
Colorado
Alamosa County
No air monitoring
Colorado
Arapahoe County
6.1µg/m3
Colorado
Archuleta County
No air monitoring
Colorado
Baca County
No air monitoring
Colorado
Bent County
No air monitoring
Colorado
Boulder County
8.7µg/m3
Colorado
Chaffee County
No air monitoring
Colorado
Cheyenne County
No air monitoring
Colorado
Clear Creek County
No air monitoring
Colorado
Conejos County
No air monitoring
Colorado
Costilla County
No air monitoring
Colorado
Crowley County
No air monitoring
Colorado
Custer County
No air monitoring
Colorado
Delta County
No air monitoring
Colorado
Denver County
9.3µg/m3
Colorado
Dolores County
No air monitoring
Colorado
Douglas County
6.7µg/m3
Colorado
Eagle County
No air monitoring
Colorado
Elbert County
No air monitoring
Colorado
El Paso County
5.5µg/m3
Colorado
Fremont County
No air monitoring
Colorado
Garfield County
No air monitoring
Colorado
Gilpin County
No air monitoring
Colorado
Grand County
No air monitoring
Colorado
Gunnison County
No air monitoring
Colorado
Hinsdale County
No air monitoring
Colorado
Huerfano County
No air monitoring
Colorado
Jackson County
No air monitoring
Colorado
Jefferson County
No air monitoring
Colorado
Kiowa County
No air monitoring
Colorado
Kit Carson County
No air monitoring
Colorado
Lake County
No air monitoring
Colorado
La Plata County
No air monitoring
Colorado
Larimer County
7.7µg/m3
Colorado
Las Animas County
No air monitoring
Colorado
Lincoln County
No air monitoring
Colorado
Logan County
No air monitoring
Colorado
Mesa County
5.8µg/m3
Colorado
Mineral County
No air monitoring
Colorado
Moffat County
No air monitoring
Colorado
Montezuma County
No air monitoring
Colorado
Montrose County
No air monitoring
Colorado
Morgan County
No air monitoring
Colorado
Otero County
No air monitoring
Colorado
Ouray County
No air monitoring
Colorado
Park County
No air monitoring
Colorado
Phillips County
No air monitoring
Colorado
Pitkin County
No air monitoring
Colorado
Prowers County
No air monitoring
Colorado
Pueblo County
No air monitoring
Colorado
Rio Blanco County
8.5µg/m3
Colorado
Rio Grande County
No air monitoring
Colorado
Routt County
No air monitoring
Colorado
Saguache County
No air monitoring
Colorado
San Juan County
No air monitoring
Colorado
San Miguel County
No air monitoring
Colorado
Sedgwick County
No air monitoring
Colorado
Summit County
No air monitoring
Colorado
Teller County
No air monitoring
Colorado
Washington County
No air monitoring
Colorado
Weld County
8.8µg/m3
Colorado
Yuma County
No air monitoring
Connecticut
Fairfield County
8µg/m3
Connecticut
Hartford County
7.5µg/m3
Connecticut
Litchfield County
5.1µg/m3
Connecticut
Middlesex County
No air monitoring
Connecticut
New Haven County
8.2µg/m3
Connecticut
New London County
6.9µg/m3
Connecticut
Tolland County
No air monitoring
Connecticut
Windham County
No air monitoring
Delaware
Kent County
No air monitoring
Delaware
New Castle County
No air monitoring
Delaware
Sussex County
No air monitoring
District of Columbia
District of Columbia
8.6µg/m3
Florida
Alachua County
7.1µg/m3
Florida
Baker County
No air monitoring
Florida
Bay County
No air monitoring
Florida
Bradford County
No air monitoring
Florida
Brevard County
7.9µg/m3
Florida
Broward County
9.4µg/m3
Florida
Calhoun County
No air monitoring
Florida
Charlotte County
No air monitoring
Florida
Citrus County
No air monitoring
Florida
Clay County
No air monitoring
Florida
Collier County
No air monitoring
Florida
Columbia County
No air monitoring
Florida
Dade County
No air monitoring
Florida
DeSoto County
No air monitoring
Florida
Dixie County
No air monitoring
Florida
Duval County
8.7µg/m3
Florida
Escambia County
9.5µg/m3
Florida
Flagler County
No air monitoring
Florida
Franklin County
No air monitoring
Florida
Gadsden County
No air monitoring
Florida
Gilchrist County
No air monitoring
Florida
Glades County
No air monitoring
Florida
Gulf County
No air monitoring
Florida
Hamilton County
No air monitoring
Florida
Hardee County
No air monitoring
Florida
Hendry County
No air monitoring
Florida
Hernando County
No air monitoring
Florida
Highlands County
No air monitoring
Florida
Hillsborough County
8.3µg/m3
Florida
Holmes County
No air monitoring
Florida
Indian River County
No air monitoring
Florida
Jackson County
No air monitoring
Florida
Jefferson County
No air monitoring
Florida
Lafayette County
No air monitoring
Florida
Lake County
No air monitoring
Florida
Lee County
No air monitoring
Florida
Leon County
7.2µg/m3
Florida
Levy County
No air monitoring
Florida
Liberty County
No air monitoring
Florida
Madison County
No air monitoring
Florida
Manatee County
No air monitoring
Florida
Marion County
No air monitoring
Florida
Martin County
No air monitoring
Florida
Miami-Dade County
7.1µg/m3
Florida
Monroe County
No air monitoring
Florida
Nassau County
No air monitoring
Florida
Okaloosa County
No air monitoring
Florida
Okeechobee County
No air monitoring
Florida
Orange County
No air monitoring
Florida
Osceola County
No air monitoring
Florida
Palm Beach County
6.7µg/m3
Florida
Pasco County
No air monitoring
Florida
Pinellas County
7.7µg/m3
Florida
Polk County
8.3µg/m3
Florida
Putnam County
No air monitoring
Florida
St. Johns County
No air monitoring
Florida
St. Lucie County
No air monitoring
Florida
Santa Rosa County
No air monitoring
Florida
Sarasota County
7.9µg/m3
Florida
Seminole County
7.5µg/m3
Florida
Sumter County
No air monitoring
Florida
Suwannee County
No air monitoring
Florida
Taylor County
No air monitoring
Florida
Union County
No air monitoring
Florida
Volusia County
8.3µg/m3
Florida
Wakulla County
No air monitoring
Florida
Walton County
No air monitoring
Florida
Washington County
No air monitoring
Georgia
Appling County
No air monitoring
Georgia
Atkinson County
No air monitoring
Georgia
Bacon County
No air monitoring
Georgia
Baker County
No air monitoring
Georgia
Baldwin County
No air monitoring
Georgia
Banks County
No air monitoring
Georgia
Barrow County
No air monitoring
Georgia
Bartow County
No air monitoring
Georgia
Ben Hill County
No air monitoring
Georgia
Berrien County
No air monitoring
Georgia
Bibb County
8.8µg/m3
Georgia
Bleckley County
No air monitoring
Georgia
Brantley County
No air monitoring
Georgia
Brooks County
No air monitoring
Georgia
Bryan County
No air monitoring
Georgia
Bulloch County
No air monitoring
Georgia
Burke County
No air monitoring
Georgia
Butts County
No air monitoring
Georgia
Calhoun County
No air monitoring
Georgia
Camden County
No air monitoring
Georgia
Candler County
No air monitoring
Georgia
Carroll County
No air monitoring
Georgia
Catoosa County
No air monitoring
Georgia
Charlton County
No air monitoring
Georgia
Chatham County
No air monitoring
Georgia
Chattahoochee County
No air monitoring
Georgia
Chattooga County
No air monitoring
Georgia
Cherokee County
No air monitoring
Georgia
Clarke County
9.2µg/m3
Georgia
Clay County
No air monitoring
Georgia
Clayton County
8.4µg/m3
Georgia
Clinch County
No air monitoring
Georgia
Cobb County
8.4µg/m3
Georgia
Coffee County
6.9µg/m3
Georgia
Colquitt County
No air monitoring
Georgia
Columbia County
No air monitoring
Georgia
Cook County
No air monitoring
Georgia
Coweta County
No air monitoring
Georgia
Crawford County
No air monitoring
Georgia
Crisp County
No air monitoring
Georgia
Dade County
No air monitoring
Georgia
Dawson County
No air monitoring
Georgia
Decatur County
No air monitoring
Georgia
DeKalb County
9µg/m3
Georgia
Dodge County
No air monitoring
Georgia
Dooly County
No air monitoring
Georgia
Dougherty County
9.2µg/m3
Georgia
Douglas County
No air monitoring
Georgia
Early County
No air monitoring
Georgia
Echols County
No air monitoring
Georgia
Effingham County
No air monitoring
Georgia
Elbert County
No air monitoring
Georgia
Emanuel County
No air monitoring
Georgia
Evans County
No air monitoring
Georgia
Fannin County
No air monitoring
Georgia
Fayette County
No air monitoring
Georgia
Floyd County
No air monitoring
Georgia
Forsyth County
No air monitoring
Georgia
Franklin County
No air monitoring
Georgia
Fulton County
9.4µg/m3
Georgia
Gilmer County
No air monitoring
Georgia
Glascock County
No air monitoring
Georgia
Glynn County
8.1µg/m3
Georgia
Gordon County
No air monitoring
Georgia
Grady County
No air monitoring
Georgia
Greene County
No air monitoring
Georgia
Gwinnett County
8.8µg/m3
Georgia
Habersham County
No air monitoring
Georgia
Hall County
8.8µg/m3
Georgia
Hancock County
No air monitoring
Georgia
Haralson County
No air monitoring
Georgia
Harris County
No air monitoring
Georgia
Hart County
No air monitoring
Georgia
Heard County
No air monitoring
Georgia
Henry County
No air monitoring
Georgia
Houston County
9.1µg/m3
Georgia
Irwin County
No air monitoring
Georgia
Jackson County
No air monitoring
Georgia
Jasper County
No air monitoring
Georgia
Jeff Davis County
No air monitoring
Georgia
Jefferson County
No air monitoring
Georgia
Jenkins County
No air monitoring
Georgia
Johnson County
No air monitoring
Georgia
Jones County
No air monitoring
Georgia
Lamar County
No air monitoring
Georgia
Lanier County
No air monitoring
Georgia
Laurens County
No air monitoring
Georgia
Lee County
No air monitoring
Georgia
Liberty County
No air monitoring
Georgia
Lincoln County
No air monitoring
Georgia
Long County
No air monitoring
Georgia
Lowndes County
8.6µg/m3
Georgia
Lumpkin County
No air monitoring
Georgia
McDuffie County
No air monitoring
Georgia
McIntosh County
No air monitoring
Georgia
Macon County
No air monitoring
Georgia
Madison County
No air monitoring
Georgia
Marion County
No air monitoring
Georgia
Meriwether County
No air monitoring
Georgia
Miller County
No air monitoring
Georgia
Mitchell County
No air monitoring
Georgia
Monroe County
No air monitoring
Georgia
Montgomery County
No air monitoring
Georgia
Morgan County
No air monitoring
Georgia
Murray County
No air monitoring
Georgia
Muscogee County
8.3µg/m3
Georgia
Newton County
No air monitoring
Georgia
Oconee County
No air monitoring
Georgia
Oglethorpe County
No air monitoring
Georgia
Paulding County
No air monitoring
Georgia
Peach County
No air monitoring
Georgia
Pickens County
No air monitoring
Georgia
Pierce County
No air monitoring
Georgia
Pike County
No air monitoring
Georgia
Polk County
No air monitoring
Georgia
Pulaski County
No air monitoring
Georgia
Putnam County
No air monitoring
Georgia
Quitman County
No air monitoring
Georgia
Rabun County
No air monitoring
Georgia
Randolph County
No air monitoring
Georgia
Richmond County
10.4µg/m3
Georgia
Rockdale County
No air monitoring
Georgia
Schley County
No air monitoring
Georgia
Screven County
No air monitoring
Georgia
Seminole County
No air monitoring
Georgia
Spalding County
No air monitoring
Georgia
Stephens County
No air monitoring
Georgia
Stewart County
No air monitoring
Georgia
Sumter County
No air monitoring
Georgia
Talbot County
No air monitoring
Georgia
Taliaferro County
No air monitoring
Georgia
Tattnall County
No air monitoring
Georgia
Taylor County
No air monitoring
Georgia
Telfair County
No air monitoring
Georgia
Terrell County
No air monitoring
Georgia
Thomas County
No air monitoring
Georgia
Tift County
No air monitoring
Georgia
Toombs County
No air monitoring
Georgia
Towns County
No air monitoring
Georgia
Treutlen County
No air monitoring
Georgia
Troup County
No air monitoring
Georgia
Turner County
No air monitoring
Georgia
Twiggs County
No air monitoring
Georgia
Union County
No air monitoring
Georgia
Upson County
No air monitoring
Georgia
Walker County
No air monitoring
Georgia
Walton County
No air monitoring
Georgia
Ware County
No air monitoring
Georgia
Warren County
No air monitoring
Georgia
Washington County
10.2µg/m3
Georgia
Wayne County
No air monitoring
Georgia
Webster County
No air monitoring
Georgia
Wheeler County
No air monitoring
Georgia
White County
No air monitoring
Georgia
Whitfield County
No air monitoring
Georgia
Wilcox County
No air monitoring
Georgia
Wilkes County
No air monitoring
Georgia
Wilkinson County
No air monitoring
Georgia
Worth County
No air monitoring
Hawaii
Hawaii County
3.4µg/m3
Hawaii
Honolulu County
3.7µg/m3
Hawaii
Kalawao County
No air monitoring
Hawaii
Kauai County
No air monitoring
Hawaii
Maui County
4µg/m3
Idaho
Ada County
8.1µg/m3
Idaho
Adams County
No air monitoring
Idaho
Bannock County
No air monitoring
Idaho
Bear Lake County
No air monitoring
Idaho
Benewah County
10.2µg/m3
Idaho
Bingham County
No air monitoring
Idaho
Blaine County
No air monitoring
Idaho
Boise County
No air monitoring
Idaho
Bonner County
No air monitoring
Idaho
Bonneville County
No air monitoring
Idaho
Boundary County
No air monitoring
Idaho
Butte County
No air monitoring
Idaho
Camas County
No air monitoring
Idaho
Canyon County
No air monitoring
Idaho
Caribou County
No air monitoring
Idaho
Cassia County
No air monitoring
Idaho
Clark County
No air monitoring
Idaho
Clearwater County
No air monitoring
Idaho
Custer County
No air monitoring
Idaho
Elmore County
No air monitoring
Idaho
Franklin County
6.6µg/m3
Idaho
Fremont County
No air monitoring
Idaho
Gem County
No air monitoring
Idaho
Gooding County
No air monitoring
Idaho
Idaho County
No air monitoring
Idaho
Jefferson County
No air monitoring
Idaho
Jerome County
No air monitoring
Idaho
Kootenai County
No air monitoring
Idaho
Latah County
No air monitoring
Idaho
Lemhi County
11.3µg/m3
Idaho
Lewis County
No air monitoring
Idaho
Lincoln County
No air monitoring
Idaho
Madison County
No air monitoring
Idaho
Minidoka County
No air monitoring
Idaho
Nez Perce County
No air monitoring
Idaho
Oneida County
No air monitoring
Idaho
Owyhee County
No air monitoring
Idaho
Payette County
No air monitoring
Idaho
Power County
No air monitoring
Idaho
Shoshone County
10.7µg/m3
Idaho
Teton County
No air monitoring
Idaho
Twin Falls County
No air monitoring
Idaho
Valley County
No air monitoring
Idaho
Washington County
No air monitoring
Illinois
Adams County
No air monitoring
Illinois
Alexander County
No air monitoring
Illinois
Bond County
No air monitoring
Illinois
Boone County
No air monitoring
Illinois
Brown County
No air monitoring
Illinois
Bureau County
No air monitoring
Illinois
Calhoun County
No air monitoring
Illinois
Carroll County
No air monitoring
Illinois
Cass County
No air monitoring
Illinois
Champaign County
7.8µg/m3
Illinois
Christian County
No air monitoring
Illinois
Clark County
No air monitoring
Illinois
Clay County
No air monitoring
Illinois
Clinton County
No air monitoring
Illinois
Coles County
No air monitoring
Illinois
Cook County
10.5µg/m3
Illinois
Crawford County
No air monitoring
Illinois
Cumberland County
No air monitoring
Illinois
DeKalb County
No air monitoring
Illinois
De Witt County
No air monitoring
Illinois
Douglas County
No air monitoring
Illinois
DuPage County
9.5µg/m3
Illinois
Edgar County
No air monitoring
Illinois
Edwards County
No air monitoring
Illinois
Effingham County
No air monitoring
Illinois
Fayette County
No air monitoring
Illinois
Ford County
No air monitoring
Illinois
Franklin County
No air monitoring
Illinois
Fulton County
No air monitoring
Illinois
Gallatin County
No air monitoring
Illinois
Greene County
No air monitoring
Illinois
Grundy County
No air monitoring
Illinois
Hamilton County
8.8µg/m3
Illinois
Hancock County
No air monitoring
Illinois
Hardin County
No air monitoring
Illinois
Henderson County
No air monitoring
Illinois
Henry County
No air monitoring
Illinois
Iroquois County
No air monitoring
Illinois
Jackson County
No air monitoring
Illinois
Jasper County
No air monitoring
Illinois
Jefferson County
No air monitoring
Illinois
Jersey County
8µg/m3
Illinois
Jo Daviess County
No air monitoring
Illinois
Johnson County
No air monitoring
Illinois
Kane County
9.2µg/m3
Illinois
Kankakee County
No air monitoring
Illinois
Kendall County
No air monitoring
Illinois
Knox County
No air monitoring
Illinois
Lake County
No air monitoring
Illinois
La Salle County
No air monitoring
Illinois
Lawrence County
No air monitoring
Illinois
Lee County
No air monitoring
Illinois
Livingston County
No air monitoring
Illinois
Logan County
No air monitoring
Illinois
McDonough County
No air monitoring
Illinois
McHenry County
8.9µg/m3
Illinois
McLean County
8.9µg/m3
Illinois
Macon County
9.2µg/m3
Illinois
Macoupin County
No air monitoring
Illinois
Madison County
10µg/m3
Illinois
Marion County
No air monitoring
Illinois
Marshall County
No air monitoring
Illinois
Mason County
No air monitoring
Illinois
Massac County
No air monitoring
Illinois
Menard County
No air monitoring
Illinois
Mercer County
No air monitoring
Illinois
Monroe County
No air monitoring
Illinois
Montgomery County
No air monitoring
Illinois
Morgan County
No air monitoring
Illinois
Moultrie County
No air monitoring
Illinois
Ogle County
No air monitoring
Illinois
Peoria County
No air monitoring
Illinois
Perry County
No air monitoring
Illinois
Piatt County
No air monitoring
Illinois
Pike County
No air monitoring
Illinois
Pope County
No air monitoring
Illinois
Pulaski County
No air monitoring
Illinois
Putnam County
No air monitoring
Illinois
Randolph County
8.2µg/m3
Illinois
Richland County
No air monitoring
Illinois
Rock Island County
8.8µg/m3
Illinois
St. Clair County
10µg/m3
Illinois
Saline County
No air monitoring
Illinois
Sangamon County
8.3µg/m3
Illinois
Schuyler County
No air monitoring
Illinois
Scott County
No air monitoring
Illinois
Shelby County
No air monitoring
Illinois
Stark County
No air monitoring
Illinois
Stephenson County
No air monitoring
Illinois
Tazewell County
No air monitoring
Illinois
Union County
No air monitoring
Illinois
Vermilion County
No air monitoring
Illinois
Wabash County
No air monitoring
Illinois
Warren County
No air monitoring
Illinois
Washington County
No air monitoring
Illinois
Wayne County
No air monitoring
Illinois
White County
No air monitoring
Illinois
Whiteside County
No air monitoring
Illinois
Will County
9.7µg/m3
Illinois
Williamson County
No air monitoring
Illinois
Winnebago County
9.1µg/m3
Illinois
Woodford County
No air monitoring
Indiana
Adams County
No air monitoring
Indiana
Allen County
No air monitoring
Indiana
Bartholomew County
7µg/m3
Indiana
Benton County
No air monitoring
Indiana
Blackford County
No air monitoring
Indiana
Boone County
No air monitoring
Indiana
Brown County
No air monitoring
Indiana
Carroll County
No air monitoring
Indiana
Cass County
No air monitoring
Indiana
Clark County
9.9µg/m3
Indiana
Clay County
No air monitoring
Indiana
Clinton County
No air monitoring
Indiana
Crawford County
No air monitoring
Indiana
Daviess County
No air monitoring
Indiana
Dearborn County
No air monitoring
Indiana
Decatur County
No air monitoring
Indiana
De Kalb County
No air monitoring
Indiana
Delaware County
8.1µg/m3
Indiana
Dubois County
8.8µg/m3
Indiana
Elkhart County
8.4µg/m3
Indiana
Fayette County
No air monitoring
Indiana
Floyd County
No air monitoring
Indiana
Fountain County
No air monitoring
Indiana
Franklin County
No air monitoring
Indiana
Fulton County
No air monitoring
Indiana
Gibson County
No air monitoring
Indiana
Grant County
No air monitoring
Indiana
Greene County
7.7µg/m3
Indiana
Hamilton County
9.8µg/m3
Indiana
Hancock County
No air monitoring
Indiana
Harrison County
No air monitoring
Indiana
Hendricks County
No air monitoring
Indiana
Henry County
7.5µg/m3
Indiana
Howard County
7.4µg/m3
Indiana
Huntington County
No air monitoring
Indiana
Jackson County
No air monitoring
Indiana
Jasper County
No air monitoring
Indiana
Jay County
No air monitoring
Indiana
Jefferson County
No air monitoring
Indiana
Jennings County
No air monitoring
Indiana
Johnson County
No air monitoring
Indiana
Knox County
No air monitoring
Indiana
Kosciusko County
No air monitoring
Indiana
Lagrange County
No air monitoring
Indiana
Lake County
9.8µg/m3
Indiana
La Porte County
8.1µg/m3
Indiana
Lawrence County
No air monitoring
Indiana
Madison County
8.9µg/m3
Indiana
Marion County
11.9µg/m3
Indiana
Marshall County
No air monitoring
Indiana
Martin County
No air monitoring
Indiana
Miami County
No air monitoring
Indiana
Monroe County
7.7µg/m3
Indiana
Montgomery County
No air monitoring
Indiana
Morgan County
No air monitoring
Indiana
Newton County
No air monitoring
Indiana
Noble County
No air monitoring
Indiana
Ohio County
No air monitoring
Indiana
Orange County
No air monitoring
Indiana
Owen County
No air monitoring
Indiana
Parke County
No air monitoring
Indiana
Perry County
No air monitoring
Indiana
Pike County
No air monitoring
Indiana
Porter County
8.3µg/m3
Indiana
Posey County
No air monitoring
Indiana
Pulaski County
No air monitoring
Indiana
Putnam County
No air monitoring
Indiana
Randolph County
No air monitoring
Indiana
Ripley County
No air monitoring
Indiana
Rush County
No air monitoring
Indiana
St. Joseph County
9.6µg/m3
Indiana
Scott County
No air monitoring
Indiana
Shelby County
No air monitoring
Indiana
Spencer County
8.2µg/m3
Indiana
Starke County
No air monitoring
Indiana
Steuben County
No air monitoring
Indiana
Sullivan County
No air monitoring
Indiana
Switzerland County
No air monitoring
Indiana
Tippecanoe County
8.4µg/m3
Indiana
Tipton County
No air monitoring
Indiana
Union County
No air monitoring
Indiana
Vanderburgh County
9.2µg/m3
Indiana
Vermillion County
No air monitoring
Indiana
Vigo County
8.7µg/m3
Indiana
Wabash County
No air monitoring
Indiana
Warren County
No air monitoring
Indiana
Warrick County
No air monitoring
Indiana
Washington County
No air monitoring
Indiana
Wayne County
No air monitoring
Indiana
Wells County
No air monitoring
Indiana
White County
No air monitoring
Indiana
Whitley County
7.6µg/m3
Iowa
Adair County
No air monitoring
Iowa
Adams County
No air monitoring
Iowa
Allamakee County
No air monitoring
Iowa
Appanoose County
No air monitoring
Iowa
Audubon County
No air monitoring
Iowa
Benton County
No air monitoring
Iowa
Black Hawk County
7.9µg/m3
Iowa
Boone County
No air monitoring
Iowa
Bremer County
No air monitoring
Iowa
Buchanan County
No air monitoring
Iowa
Buena Vista County
No air monitoring
Iowa
Butler County
No air monitoring
Iowa
Calhoun County
No air monitoring
Iowa
Carroll County
No air monitoring
Iowa
Cass County
No air monitoring
Iowa
Cedar County
No air monitoring
Iowa
Cerro Gordo County
No air monitoring
Iowa
Cherokee County
No air monitoring
Iowa
Chickasaw County
No air monitoring
Iowa
Clarke County
No air monitoring
Iowa
Clay County
No air monitoring
Iowa
Clayton County
No air monitoring
Iowa
Clinton County
8.6µg/m3
Iowa
Crawford County
No air monitoring
Iowa
Dallas County
No air monitoring
Iowa
Davis County
No air monitoring
Iowa
Decatur County
No air monitoring
Iowa
Delaware County
No air monitoring
Iowa
Des Moines County
No air monitoring
Iowa
Dickinson County
No air monitoring
Iowa
Dubuque County
No air monitoring
Iowa
Emmet County
No air monitoring
Iowa
Fayette County
No air monitoring
Iowa
Floyd County
No air monitoring
Iowa
Franklin County
No air monitoring
Iowa
Fremont County
No air monitoring
Iowa
Greene County
No air monitoring
Iowa
Grundy County
No air monitoring
Iowa
Guthrie County
No air monitoring
Iowa
Hamilton County
No air monitoring
Iowa
Hancock County
No air monitoring
Iowa
Hardin County
No air monitoring
Iowa
Harrison County
No air monitoring
Iowa
Henry County
No air monitoring
Iowa
Howard County
No air monitoring
Iowa
Humboldt County
No air monitoring
Iowa
Ida County
No air monitoring
Iowa
Iowa County
No air monitoring
Iowa
Jackson County
No air monitoring
Iowa
Jasper County
No air monitoring
Iowa
Jefferson County
No air monitoring
Iowa
Johnson County
7.8µg/m3
Iowa
Jones County
No air monitoring
Iowa
Keokuk County
No air monitoring
Iowa
Kossuth County
No air monitoring
Iowa
Lee County
8.2µg/m3
Iowa
Linn County
8.1µg/m3
Iowa
Louisa County
No air monitoring
Iowa
Lucas County
No air monitoring
Iowa
Lyon County
No air monitoring
Iowa
Madison County
No air monitoring
Iowa
Mahaska County
No air monitoring
Iowa
Marion County
No air monitoring
Iowa
Marshall County
No air monitoring
Iowa
Mills County
No air monitoring
Iowa
Mitchell County
No air monitoring
Iowa
Monona County
No air monitoring
Iowa
Monroe County
No air monitoring
Iowa
Montgomery County
6.7µg/m3
Iowa
Muscatine County
8.1µg/m3
Iowa
O'Brien County
No air monitoring
Iowa
Osceola County
No air monitoring
Iowa
Page County
No air monitoring
Iowa
Palo Alto County
7µg/m3
Iowa
Plymouth County
No air monitoring
Iowa
Pocahontas County
No air monitoring
Iowa
Polk County
7.6µg/m3
Iowa
Pottawattamie County
8.2µg/m3
Iowa
Poweshiek County
No air monitoring
Iowa
Ringgold County
No air monitoring
Iowa
Sac County
No air monitoring
Iowa
Scott County
8.4µg/m3
Iowa
Shelby County
No air monitoring
Iowa
Sioux County
No air monitoring
Iowa
Story County
No air monitoring
Iowa
Tama County
No air monitoring
Iowa
Taylor County
No air monitoring
Iowa
Union County
No air monitoring
Iowa
Van Buren County
7.1µg/m3
Iowa
Wapello County
No air monitoring
Iowa
Warren County
No air monitoring
Iowa
Washington County
No air monitoring
Iowa
Wayne County
No air monitoring
Iowa
Webster County
No air monitoring
Iowa
Winnebago County
No air monitoring
Iowa
Winneshiek County
No air monitoring
Iowa
Woodbury County
7.9µg/m3
Iowa
Worth County
No air monitoring
Iowa
Wright County
No air monitoring
Kansas
Allen County
No air monitoring
Kansas
Anderson County
No air monitoring
Kansas
Atchison County
No air monitoring
Kansas
Barber County
No air monitoring
Kansas
Barton County
No air monitoring
Kansas
Bourbon County
No air monitoring
Kansas
Brown County
No air monitoring
Kansas
Butler County
No air monitoring
Kansas
Chase County
No air monitoring
Kansas
Chautauqua County
No air monitoring
Kansas
Cherokee County
No air monitoring
Kansas
Cheyenne County
No air monitoring
Kansas
Clark County
No air monitoring
Kansas
Clay County
No air monitoring
Kansas
Cloud County
No air monitoring
Kansas
Coffey County
No air monitoring
Kansas
Comanche County
No air monitoring
Kansas
Cowley County
No air monitoring
Kansas
Crawford County
No air monitoring
Kansas
Decatur County
No air monitoring
Kansas
Dickinson County
No air monitoring
Kansas
Doniphan County
No air monitoring
Kansas
Douglas County
No air monitoring
Kansas
Edwards County
No air monitoring
Kansas
Elk County
No air monitoring
Kansas
Ellis County
No air monitoring
Kansas
Ellsworth County
No air monitoring
Kansas
Finney County
No air monitoring
Kansas
Ford County
No air monitoring
Kansas
Franklin County
No air monitoring
Kansas
Geary County
No air monitoring
Kansas
Gove County
No air monitoring
Kansas
Graham County
No air monitoring
Kansas
Grant County
No air monitoring
Kansas
Gray County
No air monitoring
Kansas
Greeley County
No air monitoring
Kansas
Greenwood County
No air monitoring
Kansas
Hamilton County
No air monitoring
Kansas
Harper County
No air monitoring
Kansas
Harvey County
No air monitoring
Kansas
Haskell County
No air monitoring
Kansas
Hodgeman County
No air monitoring
Kansas
Jackson County
No air monitoring
Kansas
Jefferson County
No air monitoring
Kansas
Jewell County
No air monitoring
Kansas
Johnson County
8.9µg/m3
Kansas
Kearny County
No air monitoring
Kansas
Kingman County
No air monitoring
Kansas
Kiowa County
No air monitoring
Kansas
Labette County
No air monitoring
Kansas
Lane County
No air monitoring
Kansas
Leavenworth County
No air monitoring
Kansas
Lincoln County
No air monitoring
Kansas
Linn County
No air monitoring
Kansas
Logan County
No air monitoring
Kansas
Lyon County
No air monitoring
Kansas
McPherson County
No air monitoring
Kansas
Marion County
No air monitoring
Kansas
Marshall County
No air monitoring
Kansas
Meade County
No air monitoring
Kansas
Miami County
No air monitoring
Kansas
Mitchell County
No air monitoring
Kansas
Montgomery County
No air monitoring
Kansas
Morris County
No air monitoring
Kansas
Morton County
No air monitoring
Kansas
Nemaha County
No air monitoring
Kansas
Neosho County
9.6µg/m3
Kansas
Ness County
No air monitoring
Kansas
Norton County
No air monitoring
Kansas
Osage County
No air monitoring
Kansas
Osborne County
No air monitoring
Kansas
Ottawa County
No air monitoring
Kansas
Pawnee County
No air monitoring
Kansas
Phillips County
No air monitoring
Kansas
Pottawatomie County
No air monitoring
Kansas
Pratt County
No air monitoring
Kansas
Rawlins County
No air monitoring
Kansas
Reno County
No air monitoring
Kansas
Republic County
No air monitoring
Kansas
Rice County
No air monitoring
Kansas
Riley County
No air monitoring
Kansas
Rooks County
No air monitoring
Kansas
Rush County
No air monitoring
Kansas
Russell County
No air monitoring
Kansas
Saline County
No air monitoring
Kansas
Scott County
No air monitoring
Kansas
Sedgwick County
No air monitoring
Kansas
Seward County
No air monitoring
Kansas
Shawnee County
No air monitoring
Kansas
Sheridan County
No air monitoring
Kansas
Sherman County
No air monitoring
Kansas
Smith County
No air monitoring
Kansas
Stafford County
No air monitoring
Kansas
Stanton County
No air monitoring
Kansas
Stevens County
No air monitoring
Kansas
Sumner County
9.8µg/m3
Kansas
Thomas County
No air monitoring
Kansas
Trego County
No air monitoring
Kansas
Wabaunsee County
No air monitoring
Kansas
Wallace County
No air monitoring
Kansas
Washington County
No air monitoring
Kansas
Wichita County
No air monitoring
Kansas
Wilson County
No air monitoring
Kansas
Woodson County
No air monitoring
Kansas
Wyandotte County
10.8µg/m3
Kentucky
Adair County
No air monitoring
Kentucky
Allen County
No air monitoring
Kentucky
Anderson County
No air monitoring
Kentucky
Ballard County
No air monitoring
Kentucky
Barren County
No air monitoring
Kentucky
Bath County
No air monitoring
Kentucky
Bell County
9.3µg/m3
Kentucky
Boone County
No air monitoring
Kentucky
Bourbon County
No air monitoring
Kentucky
Boyd County
8µg/m3
Kentucky
Boyle County
No air monitoring
Kentucky
Bracken County
No air monitoring
Kentucky
Breathitt County
No air monitoring
Kentucky
Breckinridge County
No air monitoring
Kentucky
Bullitt County
No air monitoring
Kentucky
Butler County
No air monitoring
Kentucky
Caldwell County
No air monitoring
Kentucky
Calloway County
No air monitoring
Kentucky
Campbell County
7.8µg/m3
Kentucky
Carlisle County
No air monitoring
Kentucky
Carroll County
No air monitoring
Kentucky
Carter County
6.2µg/m3
Kentucky
Casey County
No air monitoring
Kentucky
Christian County
9.2µg/m3
Kentucky
Clark County
No air monitoring
Kentucky
Clay County
No air monitoring
Kentucky
Clinton County
No air monitoring
Kentucky
Crittenden County
No air monitoring
Kentucky
Cumberland County
No air monitoring
Kentucky
Daviess County
9µg/m3
Kentucky
Edmonson County
No air monitoring
Kentucky
Elliott County
No air monitoring
Kentucky
Estill County
No air monitoring
Kentucky
Fayette County
8.2µg/m3
Kentucky
Fleming County
No air monitoring
Kentucky
Floyd County
No air monitoring
Kentucky
Franklin County
No air monitoring
Kentucky
Fulton County
No air monitoring
Kentucky
Gallatin County
No air monitoring
Kentucky
Garrard County
No air monitoring
Kentucky
Grant County
No air monitoring
Kentucky
Graves County
No air monitoring
Kentucky
Grayson County
No air monitoring
Kentucky
Green County
No air monitoring
Kentucky
Greenup County
No air monitoring
Kentucky
Hancock County
No air monitoring
Kentucky
Hardin County
7.9µg/m3
Kentucky
Harlan County
No air monitoring
Kentucky
Harrison County
No air monitoring
Kentucky
Hart County
No air monitoring
Kentucky
Henderson County
No air monitoring
Kentucky
Henry County
No air monitoring
Kentucky
Hickman County
No air monitoring
Kentucky
Hopkins County
No air monitoring
Kentucky
Jackson County
No air monitoring
Kentucky
Jefferson County
10.2µg/m3
Kentucky
Jessamine County
No air monitoring
Kentucky
Johnson County
No air monitoring
Kentucky
Kenton County
No air monitoring
Kentucky
Knott County
No air monitoring
Kentucky
Knox County
No air monitoring
Kentucky
Larue County
No air monitoring
Kentucky
Laurel County
No air monitoring
Kentucky
Lawrence County
No air monitoring
Kentucky
Lee County
No air monitoring
Kentucky
Leslie County
No air monitoring
Kentucky
Letcher County
No air monitoring
Kentucky
Lewis County
No air monitoring
Kentucky
Lincoln County
No air monitoring
Kentucky
Livingston County
No air monitoring
Kentucky
Logan County
No air monitoring
Kentucky
Lyon County
No air monitoring
Kentucky
McCracken County
No air monitoring
Kentucky
McCreary County
No air monitoring
Kentucky
McLean County
No air monitoring
Kentucky
Madison County
No air monitoring
Kentucky
Magoffin County
No air monitoring
Kentucky
Marion County
No air monitoring
Kentucky
Marshall County
No air monitoring
Kentucky
Martin County
No air monitoring
Kentucky
Mason County
No air monitoring
Kentucky
Meade County
No air monitoring
Kentucky
Menifee County
No air monitoring
Kentucky
Mercer County
No air monitoring
Kentucky
Metcalfe County
No air monitoring
Kentucky
Monroe County
No air monitoring
Kentucky
Montgomery County
No air monitoring
Kentucky
Morgan County
No air monitoring
Kentucky
Muhlenberg County
No air monitoring
Kentucky
Nelson County
No air monitoring
Kentucky
Nicholas County
No air monitoring
Kentucky
Ohio County
No air monitoring
Kentucky
Oldham County
No air monitoring
Kentucky
Owen County
No air monitoring
Kentucky
Owsley County
No air monitoring
Kentucky
Pendleton County
No air monitoring
Kentucky
Perry County
8µg/m3
Kentucky
Pike County
7.2µg/m3
Kentucky
Powell County
No air monitoring
Kentucky
Pulaski County
8µg/m3
Kentucky
Robertson County
No air monitoring
Kentucky
Rockcastle County
No air monitoring
Kentucky
Rowan County
No air monitoring
Kentucky
Russell County
No air monitoring
Kentucky
Scott County
No air monitoring
Kentucky
Shelby County
No air monitoring
Kentucky
Simpson County
No air monitoring
Kentucky
Spencer County
No air monitoring
Kentucky
Taylor County
No air monitoring
Kentucky
Todd County
No air monitoring
Kentucky
Trigg County
No air monitoring
Kentucky
Trimble County
No air monitoring
Kentucky
Union County
No air monitoring
Kentucky
Warren County
8.1µg/m3
Kentucky
Washington County
No air monitoring
Kentucky
Wayne County
No air monitoring
Kentucky
Webster County
No air monitoring
Kentucky
Whitley County
No air monitoring
Kentucky
Wolfe County
No air monitoring
Kentucky
Woodford County
No air monitoring
Louisiana
Acadia Parish
No air monitoring
Louisiana
Allen Parish
No air monitoring
Louisiana
Ascension Parish
No air monitoring
Louisiana
Assumption Parish
No air monitoring
Louisiana
Avoyelles Parish
No air monitoring
Louisiana
Beauregard Parish
No air monitoring
Louisiana
Bienville Parish
No air monitoring
Louisiana
Bossier Parish
No air monitoring
Louisiana
Caddo Parish
9.6µg/m3
Louisiana
Calcasieu Parish
7.4µg/m3
Louisiana
Caldwell Parish
No air monitoring
Louisiana
Cameron Parish
No air monitoring
Louisiana
Catahoula Parish
No air monitoring
Louisiana
Claiborne Parish
No air monitoring
Louisiana
Concordia Parish
No air monitoring
Louisiana
De Soto Parish
No air monitoring
Louisiana
East Baton Rouge Parish
8.5µg/m3
Louisiana
East Carroll Parish
No air monitoring
Louisiana
East Feliciana Parish
No air monitoring
Louisiana
Evangeline Parish
No air monitoring
Louisiana
Franklin Parish
No air monitoring
Louisiana
Grant Parish
No air monitoring
Louisiana
Iberia Parish
No air monitoring
Louisiana
Iberville Parish
7.7µg/m3
Louisiana
Jackson Parish
No air monitoring
Louisiana
Jefferson Parish
7.7µg/m3
Louisiana
Jefferson Davis Parish
No air monitoring
Louisiana
Lafayette Parish
7.9µg/m3
Louisiana
Lafourche Parish
No air monitoring
Louisiana
La Salle Parish
No air monitoring
Louisiana
Lincoln Parish
No air monitoring
Louisiana
Livingston Parish
No air monitoring
Louisiana
Madison Parish
No air monitoring
Louisiana
Morehouse Parish
No air monitoring
Louisiana
Natchitoches Parish
No air monitoring
Louisiana
Orleans Parish
7.8µg/m3
Louisiana
Ouachita Parish
7.5µg/m3
Louisiana
Plaquemines Parish
No air monitoring
Louisiana
Pointe Coupee Parish
No air monitoring
Louisiana
Rapides Parish
7.4µg/m3
Louisiana
Red River Parish
No air monitoring
Louisiana
Richland Parish
No air monitoring
Louisiana
Sabine Parish
No air monitoring
Louisiana
St. Bernard Parish
8µg/m3
Louisiana
St. Charles Parish
No air monitoring
Louisiana
St. Helena Parish
No air monitoring
Louisiana
St. James Parish
No air monitoring
Louisiana
St. John the Baptist Parish
No air monitoring
Louisiana
St. Landry Parish
No air monitoring
Louisiana
St. Martin Parish
No air monitoring
Louisiana
St. Mary Parish
No air monitoring
Louisiana
St. Tammany Parish
No air monitoring
Louisiana
Tangipahoa Parish
7.5µg/m3
Louisiana
Tensas Parish
No air monitoring
Louisiana
Terrebonne Parish
7.2µg/m3
Louisiana
Union Parish
No air monitoring
Louisiana
Vermilion Parish
No air monitoring
Louisiana
Vernon Parish
No air monitoring
Louisiana
Washington Parish
No air monitoring
Louisiana
Webster Parish
No air monitoring
Louisiana
West Baton Rouge Parish
8.8µg/m3
Louisiana
West Carroll Parish
No air monitoring
Louisiana
West Feliciana Parish
No air monitoring
Louisiana
Winn Parish
No air monitoring
Maine
Androscoggin County
5.3µg/m3
Maine
Aroostook County
5.4µg/m3
Maine
Cumberland County
6.5µg/m3
Maine
Franklin County
No air monitoring
Maine
Hancock County
3.2µg/m3
Maine
Kennebec County
5.6µg/m3
Maine
Knox County
No air monitoring
Maine
Lincoln County
No air monitoring
Maine
Oxford County
No air monitoring
Maine
Penobscot County
4.5µg/m3
Maine
Piscataquis County
No air monitoring
Maine
Sagadahoc County
No air monitoring
Maine
Somerset County
No air monitoring
Maine
Waldo County
No air monitoring
Maine
Washington County
No air monitoring
Maine
York County
No air monitoring
Maryland
Allegany County
No air monitoring
Maryland
Anne Arundel County
No air monitoring
Maryland
Baltimore County
7.7µg/m3
Maryland
Calvert County
No air monitoring
Maryland
Caroline County
No air monitoring
Maryland
Carroll County
No air monitoring
Maryland
Cecil County
6.8µg/m3
Maryland
Charles County
No air monitoring
Maryland
Dorchester County
5.9µg/m3
Maryland
Frederick County
No air monitoring
Maryland
Garrett County
5.2µg/m3
Maryland
Harford County
6.7µg/m3
Maryland
Howard County
6.9µg/m3
Maryland
Kent County
5.5µg/m3
Maryland
Montgomery County
6.8µg/m3
Maryland
Prince George's County
5.9µg/m3
Maryland
Queen Anne's County
No air monitoring
Maryland
St. Mary's County
No air monitoring
Maryland
Somerset County
No air monitoring
Maryland
Talbot County
No air monitoring
Maryland
Washington County
6.8µg/m3
Maryland
Wicomico County
No air monitoring
Maryland
Worcester County
No air monitoring
Maryland
Baltimore city
No air monitoring
Massachusetts
Barnstable County
No air monitoring
Massachusetts
Berkshire County
7.5µg/m3
Massachusetts
Bristol County
6.4µg/m3
Massachusetts
Dukes County
No air monitoring
Massachusetts
Essex County
6.3µg/m3
Massachusetts
Franklin County
7.8µg/m3
Massachusetts
Hampden County
6.5µg/m3
Massachusetts
Hampshire County
6.3µg/m3
Massachusetts
Middlesex County
6.6µg/m3
Massachusetts
Nantucket County
No air monitoring
Massachusetts
Norfolk County
No air monitoring
Massachusetts
Plymouth County
8.2µg/m3
Massachusetts
Suffolk County
7.9µg/m3
Massachusetts
Worcester County
8.6µg/m3
Michigan
Alcona County
No air monitoring
Michigan
Alger County
No air monitoring
Michigan
Allegan County
6.6µg/m3
Michigan
Alpena County
No air monitoring
Michigan
Antrim County
No air monitoring
Michigan
Arenac County
No air monitoring
Michigan
Baraga County
No air monitoring
Michigan
Barry County
No air monitoring
Michigan
Bay County
5.8µg/m3
Michigan
Benzie County
No air monitoring
Michigan
Berrien County
No air monitoring
Michigan
Branch County
No air monitoring
Michigan
Calhoun County
No air monitoring
Michigan
Cass County
No air monitoring
Michigan
Charlevoix County
No air monitoring
Michigan
Cheboygan County
No air monitoring
Michigan
Chippewa County
No air monitoring
Michigan
Clare County
No air monitoring
Michigan
Clinton County
No air monitoring
Michigan
Crawford County
No air monitoring
Michigan
Delta County
No air monitoring
Michigan
Dickinson County
No air monitoring
Michigan
Eaton County
No air monitoring
Michigan
Emmet County
No air monitoring
Michigan
Genesee County
7.2µg/m3
Michigan
Gladwin County
No air monitoring
Michigan
Gogebic County
No air monitoring
Michigan
Grand Traverse County
No air monitoring
Michigan
Gratiot County
No air monitoring
Michigan
Hillsdale County
No air monitoring
Michigan
Houghton County
No air monitoring
Michigan
Huron County
No air monitoring
Michigan
Ingham County
8.5µg/m3
Michigan
Ionia County
No air monitoring
Michigan
Iosco County
No air monitoring
Michigan
Iron County
No air monitoring
Michigan
Isabella County
No air monitoring
Michigan
Jackson County
No air monitoring
Michigan
Kalamazoo County
9.5µg/m3
Michigan
Kalkaska County
No air monitoring
Michigan
Kent County
9.2µg/m3
Michigan
Keweenaw County
No air monitoring
Michigan
Lake County
No air monitoring
Michigan
Lapeer County
No air monitoring
Michigan
Leelanau County
No air monitoring
Michigan
Lenawee County
8.3µg/m3
Michigan
Livingston County
No air monitoring
Michigan
Luce County
No air monitoring
Michigan
Mackinac County
No air monitoring
Michigan
Macomb County
8.2µg/m3
Michigan
Manistee County
No air monitoring
Michigan
Marquette County
No air monitoring
Michigan
Mason County
No air monitoring
Michigan
Mecosta County
No air monitoring
Michigan
Menominee County
No air monitoring
Michigan
Midland County
No air monitoring
Michigan
Missaukee County
8.6µg/m3
Michigan
Monroe County
No air monitoring
Michigan
Montcalm County
No air monitoring
Michigan
Montmorency County
No air monitoring
Michigan
Muskegon County
No air monitoring
Michigan
Newaygo County
No air monitoring
Michigan
Oakland County
7.5µg/m3
Michigan
Oceana County
No air monitoring
Michigan
Ogemaw County
No air monitoring
Michigan
Ontonagon County
No air monitoring
Michigan
Osceola County
No air monitoring
Michigan
Oscoda County
No air monitoring
Michigan
Otsego County
No air monitoring
Michigan
Ottawa County
8.8µg/m3
Michigan
Presque Isle County
No air monitoring
Michigan
Roscommon County
No air monitoring
Michigan
Saginaw County
No air monitoring
Michigan
St. Clair County
8.2µg/m3
Michigan
St. Joseph County
No air monitoring
Michigan
Sanilac County
No air monitoring
Michigan
Schoolcraft County
No air monitoring
Michigan
Shiawassee County
No air monitoring
Michigan
Tuscola County
No air monitoring
Michigan
Van Buren County
No air monitoring
Michigan
Washtenaw County
8.7µg/m3
Michigan
Wayne County
11.7µg/m3
Michigan
Wexford County
No air monitoring
Minnesota
Aitkin County
No air monitoring
Minnesota
Anoka County
6.6µg/m3
Minnesota
Becker County
7.2µg/m3
Minnesota
Beltrami County
6.2µg/m3
Minnesota
Benton County
No air monitoring
Minnesota
Big Stone County
No air monitoring
Minnesota
Blue Earth County
No air monitoring
Minnesota
Brown County
No air monitoring
Minnesota
Carlton County
2.2µg/m3
Minnesota
Carver County
No air monitoring
Minnesota
Cass County
7.8µg/m3
Minnesota
Chippewa County
No air monitoring
Minnesota
Chisago County
No air monitoring
Minnesota
Clay County
No air monitoring
Minnesota
Clearwater County
No air monitoring
Minnesota
Cook County
2.3µg/m3
Minnesota
Cottonwood County
No air monitoring
Minnesota
Crow Wing County
5.5µg/m3
Minnesota
Dakota County
7.4µg/m3
Minnesota
Dodge County
No air monitoring
Minnesota
Douglas County
No air monitoring
Minnesota
Faribault County
No air monitoring
Minnesota
Fillmore County
No air monitoring
Minnesota
Freeborn County
No air monitoring
Minnesota
Goodhue County
No air monitoring
Minnesota
Grant County
No air monitoring
Minnesota
Hennepin County
8µg/m3
Minnesota
Houston County
No air monitoring
Minnesota
Hubbard County
No air monitoring
Minnesota
Isanti County
No air monitoring
Minnesota
Itasca County
No air monitoring
Minnesota
Jackson County
No air monitoring
Minnesota
Kanabec County
No air monitoring
Minnesota
Kandiyohi County
No air monitoring
Minnesota
Kittson County
No air monitoring
Minnesota
Koochiching County
No air monitoring
Minnesota
Lac qui Parle County
No air monitoring
Minnesota
Lake County
4.7µg/m3
Minnesota
Lake of the Woods County
No air monitoring
Minnesota
Le Sueur County
No air monitoring
Minnesota
Lincoln County
No air monitoring
Minnesota
Lyon County
6.4µg/m3
Minnesota
McLeod County
No air monitoring
Minnesota
Mahnomen County
No air monitoring
Minnesota
Marshall County
No air monitoring
Minnesota
Martin County
No air monitoring
Minnesota
Meeker County
No air monitoring
Minnesota
Mille Lacs County
No air monitoring
Minnesota
Morrison County
No air monitoring
Minnesota
Mower County
No air monitoring
Minnesota
Murray County
No air monitoring
Minnesota
Nicollet County
No air monitoring
Minnesota
Nobles County
No air monitoring
Minnesota
Norman County
No air monitoring
Minnesota
Olmsted County
6µg/m3
Minnesota
Otter Tail County
No air monitoring
Minnesota
Pennington County
No air monitoring
Minnesota
Pine County
No air monitoring
Minnesota
Pipestone County
No air monitoring
Minnesota
Polk County
No air monitoring
Minnesota
Pope County
No air monitoring
Minnesota
Ramsey County
7.2µg/m3
Minnesota
Red Lake County
No air monitoring
Minnesota
Redwood County
No air monitoring
Minnesota
Renville County
No air monitoring
Minnesota
Rice County
No air monitoring
Minnesota
Rock County
No air monitoring
Minnesota
Roseau County
No air monitoring
Minnesota
St. Louis County
5.1µg/m3
Minnesota
Scott County
6.4µg/m3
Minnesota
Sherburne County
No air monitoring
Minnesota
Sibley County
No air monitoring
Minnesota
Stearns County
No air monitoring
Minnesota
Steele County
No air monitoring
Minnesota
Stevens County
No air monitoring
Minnesota
Swift County
No air monitoring
Minnesota
Todd County
No air monitoring
Minnesota
Traverse County
No air monitoring
Minnesota
Wabasha County
No air monitoring
Minnesota
Wadena County
No air monitoring
Minnesota
Waseca County
No air monitoring
Minnesota
Washington County
No air monitoring
Minnesota
Watonwan County
No air monitoring
Minnesota
Wilkin County
No air monitoring
Minnesota
Winona County
No air monitoring
Minnesota
Wright County
7µg/m3
Minnesota
Yellow Medicine County
No air monitoring
Mississippi
Adams County
No air monitoring
Mississippi
Alcorn County
No air monitoring
Mississippi
Amite County
No air monitoring
Mississippi
Attala County
No air monitoring
Mississippi
Benton County
No air monitoring
Mississippi
Bolivar County
8.5µg/m3
Mississippi
Calhoun County
No air monitoring
Mississippi
Carroll County
No air monitoring
Mississippi
Chickasaw County
No air monitoring
Mississippi
Choctaw County
No air monitoring
Mississippi
Claiborne County
No air monitoring
Mississippi
Clarke County
No air monitoring
Mississippi
Clay County
No air monitoring
Mississippi
Coahoma County
No air monitoring
Mississippi
Copiah County
No air monitoring
Mississippi
Covington County
No air monitoring
Mississippi
DeSoto County
8.7µg/m3
Mississippi
Forrest County
9.9µg/m3
Mississippi
Franklin County
No air monitoring
Mississippi
George County
No air monitoring
Mississippi
Greene County
No air monitoring
Mississippi
Grenada County
No air monitoring
Mississippi
Hancock County
8.5µg/m3
Mississippi
Harrison County
9.1µg/m3
Mississippi
Hinds County
10.1µg/m3
Mississippi
Holmes County
No air monitoring
Mississippi
Humphreys County
No air monitoring
Mississippi
Issaquena County
No air monitoring
Mississippi
Itawamba County
No air monitoring
Mississippi
Jackson County
8.2µg/m3
Mississippi
Jasper County
No air monitoring
Mississippi
Jefferson County
No air monitoring
Mississippi
Jefferson Davis County
No air monitoring
Mississippi
Jones County
No air monitoring
Mississippi
Kemper County
No air monitoring
Mississippi
Lafayette County
No air monitoring
Mississippi
Lamar County
No air monitoring
Mississippi
Lauderdale County
No air monitoring
Mississippi
Lawrence County
No air monitoring
Mississippi
Leake County
No air monitoring
Mississippi
Lee County
No air monitoring
Mississippi
Leflore County
No air monitoring
Mississippi
Lincoln County
No air monitoring
Mississippi
Lowndes County
No air monitoring
Mississippi
Madison County
No air monitoring
Mississippi
Marion County
No air monitoring
Mississippi
Marshall County
No air monitoring
Mississippi
Monroe County
No air monitoring
Mississippi
Montgomery County
No air monitoring
Mississippi
Neshoba County
No air monitoring
Mississippi
Newton County
No air monitoring
Mississippi
Noxubee County
No air monitoring
Mississippi
Oktibbeha County
No air monitoring
Mississippi
Panola County
No air monitoring
Mississippi
Pearl River County
No air monitoring
Mississippi
Perry County
No air monitoring
Mississippi
Pike County
No air monitoring
Mississippi
Pontotoc County
No air monitoring
Mississippi
Prentiss County
No air monitoring
Mississippi
Quitman County
No air monitoring
Mississippi
Rankin County
No air monitoring
Mississippi
Scott County
No air monitoring
Mississippi
Sharkey County
No air monitoring
Mississippi
Simpson County
No air monitoring
Mississippi
Smith County
No air monitoring
Mississippi
Stone County
No air monitoring
Mississippi
Sunflower County
No air monitoring
Mississippi
Tallahatchie County
No air monitoring
Mississippi
Tate County
No air monitoring
Mississippi
Tippah County
No air monitoring
Mississippi
Tishomingo County
No air monitoring
Mississippi
Tunica County
No air monitoring
Mississippi
Union County
No air monitoring
Mississippi
Walthall County
No air monitoring
Mississippi
Warren County
No air monitoring
Mississippi
Washington County
No air monitoring
Mississippi
Wayne County
No air monitoring
Mississippi
Webster County
No air monitoring
Mississippi
Wilkinson County
No air monitoring
Mississippi
Winston County
No air monitoring
Mississippi
Yalobusha County
No air monitoring
Mississippi
Yazoo County
No air monitoring
Missouri
Adair County
No air monitoring
Missouri
Andrew County
No air monitoring
Missouri
Atchison County
No air monitoring
Missouri
Audrain County
No air monitoring
Missouri
Barry County
No air monitoring
Missouri
Barton County
No air monitoring
Missouri
Bates County
No air monitoring
Missouri
Benton County
No air monitoring
Missouri
Bollinger County
No air monitoring
Missouri
Boone County
No air monitoring
Missouri
Buchanan County
8.1µg/m3
Missouri
Butler County
No air monitoring
Missouri
Caldwell County
No air monitoring
Missouri
Callaway County
No air monitoring
Missouri
Camden County
No air monitoring
Missouri
Cape Girardeau County
No air monitoring
Missouri
Carroll County
No air monitoring
Missouri
Carter County
No air monitoring
Missouri
Cass County
6.3µg/m3
Missouri
Cedar County
6.7µg/m3
Missouri
Chariton County
No air monitoring
Missouri
Christian County
No air monitoring
Missouri
Clark County
No air monitoring
Missouri
Clay County
6µg/m3
Missouri
Clinton County
No air monitoring
Missouri
Cole County
No air monitoring
Missouri
Cooper County
No air monitoring
Missouri
Crawford County
No air monitoring
Missouri
Dade County
No air monitoring
Missouri
Dallas County
No air monitoring
Missouri
Daviess County
No air monitoring
Missouri
DeKalb County
No air monitoring
Missouri
Dent County
No air monitoring
Missouri
Douglas County
No air monitoring
Missouri
Dunklin County
No air monitoring
Missouri
Franklin County
No air monitoring
Missouri
Gasconade County
No air monitoring
Missouri
Gentry County
No air monitoring
Missouri
Greene County
No air monitoring
Missouri
Grundy County
No air monitoring
Missouri
Harrison County
No air monitoring
Missouri
Henry County
No air monitoring
Missouri
Hickory County
No air monitoring
Missouri
Holt County
No air monitoring
Missouri
Howard County
No air monitoring
Missouri
Howell County
No air monitoring
Missouri
Iron County
No air monitoring
Missouri
Jackson County
7.9µg/m3
Missouri
Jasper County
No air monitoring
Missouri
Jefferson County
8µg/m3
Missouri
Johnson County
No air monitoring
Missouri
Knox County
No air monitoring
Missouri
Laclede County
No air monitoring
Missouri
Lafayette County
No air monitoring
Missouri
Lawrence County
No air monitoring
Missouri
Lewis County
No air monitoring
Missouri
Lincoln County
No air monitoring
Missouri
Linn County
No air monitoring
Missouri
Livingston County
No air monitoring
Missouri
McDonald County
No air monitoring
Missouri
Macon County
No air monitoring
Missouri
Madison County
No air monitoring
Missouri
Maries County
No air monitoring
Missouri
Marion County
No air monitoring
Missouri
Mercer County
No air monitoring
Missouri
Miller County
No air monitoring
Missouri
Mississippi County
No air monitoring
Missouri
Moniteau County
No air monitoring
Missouri
Monroe County
No air monitoring
Missouri
Montgomery County
No air monitoring
Missouri
Morgan County
No air monitoring
Missouri
New Madrid County
No air monitoring
Missouri
Newton County
No air monitoring
Missouri
Nodaway County
No air monitoring
Missouri
Oregon County
No air monitoring
Missouri
Osage County
No air monitoring
Missouri
Ozark County
No air monitoring
Missouri
Pemiscot County
No air monitoring
Missouri
Perry County
No air monitoring
Missouri
Pettis County
No air monitoring
Missouri
Phelps County
No air monitoring
Missouri
Pike County
No air monitoring
Missouri
Platte County
No air monitoring
Missouri
Polk County
No air monitoring
Missouri
Pulaski County
No air monitoring
Missouri
Putnam County
No air monitoring
Missouri
Ralls County
No air monitoring
Missouri
Randolph County
No air monitoring
Missouri
Ray County
No air monitoring
Missouri
Reynolds County
No air monitoring
Missouri
Ripley County
No air monitoring
Missouri
St. Charles County
No air monitoring
Missouri
St. Clair County
No air monitoring
Missouri
Ste. Genevieve County
No air monitoring
Missouri
St. Francois County
No air monitoring
Missouri
St. Louis County
7µg/m3
Missouri
Saline County
No air monitoring
Missouri
Schuyler County
No air monitoring
Missouri
Scotland County
No air monitoring
Missouri
Scott County
No air monitoring
Missouri
Shannon County
No air monitoring
Missouri
Shelby County
No air monitoring
Missouri
Stoddard County
No air monitoring
Missouri
Stone County
No air monitoring
Missouri
Sullivan County
No air monitoring
Missouri
Taney County
No air monitoring
Missouri
Texas County
No air monitoring
Missouri
Vernon County
No air monitoring
Missouri
Warren County
No air monitoring
Missouri
Washington County
No air monitoring
Missouri
Wayne County
No air monitoring
Missouri
Webster County
No air monitoring
Missouri
Worth County
No air monitoring
Missouri
Wright County
No air monitoring
Missouri
St. Louis city
8.9µg/m3
Montana
Beaverhead County
No air monitoring
Montana
Big Horn County
No air monitoring
Montana
Blaine County
No air monitoring
Montana
Broadwater County
No air monitoring
Montana
Carbon County
No air monitoring
Montana
Carter County
No air monitoring
Montana
Cascade County
No air monitoring
Montana
Chouteau County
No air monitoring
Montana
Custer County
No air monitoring
Montana
Daniels County
No air monitoring
Montana
Dawson County
No air monitoring
Montana
Deer Lodge County
No air monitoring
Montana
Fallon County
No air monitoring
Montana
Fergus County
5.2µg/m3
Montana
Flathead County
7.7µg/m3
Montana
Gallatin County
3.9µg/m3
Montana
Garfield County
No air monitoring
Montana
Glacier County
No air monitoring
Montana
Golden Valley County
No air monitoring
Montana
Granite County
No air monitoring
Montana
Hill County
No air monitoring
Montana
Jefferson County
No air monitoring
Montana
Judith Basin County
No air monitoring
Montana
Lake County
No air monitoring
Montana
Lewis and Clark County
8.4µg/m3
Montana
Liberty County
No air monitoring
Montana
Lincoln County
13.4µg/m3
Montana
McCone County
No air monitoring
Montana
Madison County
No air monitoring
Montana
Meagher County
No air monitoring
Montana
Mineral County
No air monitoring
Montana
Missoula County
10.1µg/m3
Montana
Musselshell County
No air monitoring
Montana
Park County
No air monitoring
Montana
Petroleum County
No air monitoring
Montana
Phillips County
5.6µg/m3
Montana
Pondera County
No air monitoring
Montana
Powder River County
7.7µg/m3
Montana
Powell County
No air monitoring
Montana
Prairie County
No air monitoring
Montana
Ravalli County
7.8µg/m3
Montana
Richland County
5.2µg/m3
Montana
Roosevelt County
No air monitoring
Montana
Rosebud County
No air monitoring
Montana
Sanders County
No air monitoring
Montana
Sheridan County
No air monitoring
Montana
Silver Bow County
7.8µg/m3
Montana
Stillwater County
No air monitoring
Montana
Sweet Grass County
No air monitoring
Montana
Teton County
No air monitoring
Montana
Toole County
No air monitoring
Montana
Treasure County
No air monitoring
Montana
Valley County
No air monitoring
Montana
Wheatland County
No air monitoring
Montana
Wibaux County
No air monitoring
Montana
Yellowstone County
7.9µg/m3
Montana
Yellowstone National Park
No air monitoring
Nebraska
Adams County
No air monitoring
Nebraska
Antelope County
No air monitoring
Nebraska
Arthur County
No air monitoring
Nebraska
Banner County
No air monitoring
Nebraska
Blaine County
No air monitoring
Nebraska
Boone County
No air monitoring
Nebraska
Box Butte County
No air monitoring
Nebraska
Boyd County
No air monitoring
Nebraska
Brown County
No air monitoring
Nebraska
Buffalo County
No air monitoring
Nebraska
Burt County
No air monitoring
Nebraska
Butler County
No air monitoring
Nebraska
Cass County
No air monitoring
Nebraska
Cedar County
No air monitoring
Nebraska
Chase County
No air monitoring
Nebraska
Cherry County
No air monitoring
Nebraska
Cheyenne County
No air monitoring
Nebraska
Clay County
No air monitoring
Nebraska
Colfax County
No air monitoring
Nebraska
Cuming County
No air monitoring
Nebraska
Custer County
No air monitoring
Nebraska
Dakota County
No air monitoring
Nebraska
Dawes County
No air monitoring
Nebraska
Dawson County
No air monitoring
Nebraska
Deuel County
No air monitoring
Nebraska
Dixon County
No air monitoring
Nebraska
Dodge County
No air monitoring
Nebraska
Douglas County
7.5µg/m3
Nebraska
Dundy County
No air monitoring
Nebraska
Fillmore County
No air monitoring
Nebraska
Franklin County
No air monitoring
Nebraska
Frontier County
No air monitoring
Nebraska
Furnas County
No air monitoring
Nebraska
Gage County
No air monitoring
Nebraska
Garden County
No air monitoring
Nebraska
Garfield County
No air monitoring
Nebraska
Gosper County
No air monitoring
Nebraska
Grant County
No air monitoring
Nebraska
Greeley County
No air monitoring
Nebraska
Hall County
6.2µg/m3
Nebraska
Hamilton County
No air monitoring
Nebraska
Harlan County
No air monitoring
Nebraska
Hayes County
No air monitoring
Nebraska
Hitchcock County
No air monitoring
Nebraska
Holt County
No air monitoring
Nebraska
Hooker County
No air monitoring
Nebraska
Howard County
No air monitoring
Nebraska
Jefferson County
No air monitoring
Nebraska
Johnson County
No air monitoring
Nebraska
Kearney County
No air monitoring
Nebraska
Keith County
No air monitoring
Nebraska
Keya Paha County
No air monitoring
Nebraska
Kimball County
No air monitoring
Nebraska
Knox County
No air monitoring
Nebraska
Lancaster County
6.4µg/m3
Nebraska
Lincoln County
No air monitoring
Nebraska
Logan County
No air monitoring
Nebraska
Loup County
No air monitoring
Nebraska
McPherson County
No air monitoring
Nebraska
Madison County
No air monitoring
Nebraska
Merrick County
No air monitoring
Nebraska
Morrill County
No air monitoring
Nebraska
Nance County
No air monitoring
Nebraska
Nemaha County
No air monitoring
Nebraska
Nuckolls County
No air monitoring
Nebraska
Otoe County
No air monitoring
Nebraska
Pawnee County
No air monitoring
Nebraska
Perkins County
No air monitoring
Nebraska
Phelps County
No air monitoring
Nebraska
Pierce County
No air monitoring
Nebraska
Platte County
No air monitoring
Nebraska
Polk County
No air monitoring
Nebraska
Red Willow County
No air monitoring
Nebraska
Richardson County
No air monitoring
Nebraska
Rock County
No air monitoring
Nebraska
Saline County
No air monitoring
Nebraska
Sarpy County
7.8µg/m3
Nebraska
Saunders County
No air monitoring
Nebraska
Scotts Bluff County
No air monitoring
Nebraska
Seward County
No air monitoring
Nebraska
Sheridan County
No air monitoring
Nebraska
Sherman County
No air monitoring
Nebraska
Sioux County
No air monitoring
Nebraska
Stanton County
No air monitoring
Nebraska
Thayer County
No air monitoring
Nebraska
Thomas County
No air monitoring
Nebraska
Thurston County
No air monitoring
Nebraska
Valley County
No air monitoring
Nebraska
Washington County
6.2µg/m3
Nebraska
Wayne County
No air monitoring
Nebraska
Webster County
No air monitoring
Nebraska
Wheeler County
No air monitoring
Nebraska
York County
No air monitoring
Nevada
Churchill County
No air monitoring
Nevada
Clark County
10.8µg/m3
Nevada
Douglas County
9.6µg/m3
Nevada
Elko County
No air monitoring
Nevada
Esmeralda County
No air monitoring
Nevada
Eureka County
No air monitoring
Nevada
Humboldt County
No air monitoring
Nevada
Lander County
No air monitoring
Nevada
Lincoln County
No air monitoring
Nevada
Lyon County
No air monitoring
Nevada
Mineral County
No air monitoring
Nevada
Nye County
No air monitoring
Nevada
Pershing County
No air monitoring
Nevada
Storey County
No air monitoring
Nevada
Washoe County
11µg/m3
Nevada
White Pine County
No air monitoring
Nevada
Carson City
8.7µg/m3
New Hampshire
Belknap County
4.5µg/m3
New Hampshire
Carroll County
No air monitoring
New Hampshire
Cheshire County
6.6µg/m3
New Hampshire
Coos County
No air monitoring
New Hampshire
Grafton County
5.3µg/m3
New Hampshire
Hillsborough County
3.9µg/m3
New Hampshire
Merrimack County
No air monitoring
New Hampshire
Rockingham County
6µg/m3
New Hampshire
Strafford County
No air monitoring
New Hampshire
Sullivan County
No air monitoring
New Jersey
Atlantic County
6.3µg/m3
New Jersey
Bergen County
No air monitoring
New Jersey
Burlington County
No air monitoring
New Jersey
Camden County
9.1µg/m3
New Jersey
Cape May County
No air monitoring
New Jersey
Cumberland County
No air monitoring
New Jersey
Essex County
No air monitoring
New Jersey
Gloucester County
No air monitoring
New Jersey
Hudson County
No air monitoring
New Jersey
Hunterdon County
7.4µg/m3
New Jersey
Mercer County
7.9µg/m3
New Jersey
Middlesex County
7.7µg/m3
New Jersey
Monmouth County
No air monitoring
New Jersey
Morris County
No air monitoring
New Jersey
Ocean County
6.6µg/m3
New Jersey
Passaic County
No air monitoring
New Jersey
Salem County
No air monitoring
New Jersey
Somerset County
No air monitoring
New Jersey
Sussex County
No air monitoring
New Jersey
Union County
9µg/m3
New Jersey
Warren County
7.8µg/m3
New Mexico
Bernalillo County
9.6µg/m3
New Mexico
Catron County
No air monitoring
New Mexico
Chaves County
No air monitoring
New Mexico
Cibola County
No air monitoring
New Mexico
Colfax County
No air monitoring
New Mexico
Curry County
No air monitoring
New Mexico
DeBaca County
No air monitoring
New Mexico
Dona Ana County
8.9µg/m3
New Mexico
Eddy County
No air monitoring
New Mexico
Grant County
No air monitoring
New Mexico
Guadalupe County
No air monitoring
New Mexico
Harding County
No air monitoring
New Mexico
Hidalgo County
No air monitoring
New Mexico
Lea County
6.3µg/m3
New Mexico
Lincoln County
No air monitoring
New Mexico
Los Alamos County
No air monitoring
New Mexico
Luna County
No air monitoring
New Mexico
McKinley County
No air monitoring
New Mexico
Mora County
No air monitoring
New Mexico
Otero County
No air monitoring
New Mexico
Quay County
No air monitoring
New Mexico
Rio Arriba County
No air monitoring
New Mexico
Roosevelt County
No air monitoring
New Mexico
Sandoval County
No air monitoring
New Mexico
San Juan County
No air monitoring
New Mexico
San Miguel County
No air monitoring
New Mexico
Santa Fe County
4.3µg/m3
New Mexico
Sierra County
No air monitoring
New Mexico
Socorro County
No air monitoring
New Mexico
Taos County
5.5µg/m3
New Mexico
Torrance County
No air monitoring
New Mexico
Union County
No air monitoring
New Mexico
Valencia County
No air monitoring
New York
Albany County
7.3µg/m3
New York
Allegany County
No air monitoring
New York
Bronx County
8.1µg/m3
New York
Broome County
No air monitoring
New York
Cattaraugus County
No air monitoring
New York
Cayuga County
No air monitoring
New York
Chautauqua County
5.8µg/m3
New York
Chemung County
No air monitoring
New York
Chenango County
No air monitoring
New York
Clinton County
No air monitoring
New York
Columbia County
No air monitoring
New York
Cortland County
No air monitoring
New York
Delaware County
No air monitoring
New York
Dutchess County
No air monitoring
New York
Erie County
7.1µg/m3
New York
Essex County
3.5µg/m3
New York
Franklin County
No air monitoring
New York
Fulton County
No air monitoring
New York
Genesee County
No air monitoring
New York
Greene County
No air monitoring
New York
Hamilton County
No air monitoring
New York
Herkimer County
No air monitoring
New York
Jefferson County
No air monitoring
New York
Kings County
No air monitoring
New York
Lewis County
No air monitoring
New York
Livingston County
No air monitoring
New York
Madison County
No air monitoring
New York
Monroe County
6.5µg/m3
New York
Montgomery County
No air monitoring
New York
Nassau County
No air monitoring
New York
New York County
No air monitoring
New York
Niagara County
No air monitoring
New York
Oneida County
No air monitoring
New York
Onondaga County
6.1µg/m3
New York
Ontario County
No air monitoring
New York
Orange County
No air monitoring
New York
Orleans County
No air monitoring
New York
Oswego County
No air monitoring
New York
Otsego County
No air monitoring
New York
Putnam County
No air monitoring
New York
Queens County
7.4µg/m3
New York
Rensselaer County
No air monitoring
New York
Richmond County
No air monitoring
New York
Rockland County
No air monitoring
New York
St. Lawrence County
No air monitoring
New York
Saratoga County
No air monitoring
New York
Schenectady County
No air monitoring
New York
Schoharie County
No air monitoring
New York
Schuyler County
No air monitoring
New York
Seneca County
No air monitoring
New York
Steuben County
5.7µg/m3
New York
Suffolk County
No air monitoring
New York
Sullivan County
No air monitoring
New York
Tioga County
No air monitoring
New York
Tompkins County
No air monitoring
New York
Ulster County
No air monitoring
New York
Warren County
No air monitoring
New York
Washington County
No air monitoring
New York
Wayne County
No air monitoring
New York
Westchester County
No air monitoring
New York
Wyoming County
No air monitoring
New York
Yates County
No air monitoring
North Carolina
Alamance County
No air monitoring
North Carolina
Alexander County
No air monitoring
North Carolina
Alleghany County
No air monitoring
North Carolina
Anson County
No air monitoring
North Carolina
Ashe County
No air monitoring
North Carolina
Avery County
No air monitoring
North Carolina
Beaufort County
No air monitoring
North Carolina
Bertie County
No air monitoring
North Carolina
Bladen County
No air monitoring
North Carolina
Brunswick County
No air monitoring
North Carolina
Buncombe County
5.8µg/m3
North Carolina
Burke County
No air monitoring
North Carolina
Cabarrus County
No air monitoring
North Carolina
Caldwell County
No air monitoring
North Carolina
Camden County
No air monitoring
North Carolina
Carteret County
No air monitoring
North Carolina
Caswell County
No air monitoring
North Carolina
Catawba County
8.2µg/m3
North Carolina
Chatham County
No air monitoring
North Carolina
Cherokee County
No air monitoring
North Carolina
Chowan County
No air monitoring
North Carolina
Clay County
No air monitoring
North Carolina
Cleveland County
No air monitoring
North Carolina
Columbus County
No air monitoring
North Carolina
Craven County
No air monitoring
North Carolina
Cumberland County
7.6µg/m3
North Carolina
Currituck County
No air monitoring
North Carolina
Dare County
No air monitoring
North Carolina
Davidson County
8.8µg/m3
North Carolina
Davie County
No air monitoring
North Carolina
Duplin County
No air monitoring
North Carolina
Durham County
7.3µg/m3
North Carolina
Edgecombe County
No air monitoring
North Carolina
Forsyth County
8.4µg/m3
North Carolina
Franklin County
No air monitoring
North Carolina
Gaston County
No air monitoring
North Carolina
Gates County
No air monitoring
North Carolina
Graham County
No air monitoring
North Carolina
Granville County
No air monitoring
North Carolina
Greene County
No air monitoring
North Carolina
Guilford County
7.4µg/m3
North Carolina
Halifax County
No air monitoring
North Carolina
Harnett County
No air monitoring
North Carolina
Haywood County
No air monitoring
North Carolina
Henderson County
No air monitoring
North Carolina
Hertford County
No air monitoring
North Carolina
Hoke County
No air monitoring
North Carolina
Hyde County
No air monitoring
North Carolina
Iredell County
No air monitoring
North Carolina
Jackson County
No air monitoring
North Carolina
Johnston County
7.2µg/m3
North Carolina
Jones County
No air monitoring
North Carolina
Lee County
No air monitoring
North Carolina
Lenoir County
No air monitoring
North Carolina
Lincoln County
No air monitoring
North Carolina
McDowell County
No air monitoring
North Carolina
Macon County
No air monitoring
North Carolina
Madison County
No air monitoring
North Carolina
Martin County
No air monitoring
North Carolina
Mecklenburg County
8.7µg/m3
North Carolina
Mitchell County
5.8µg/m3
North Carolina
Montgomery County
7.6µg/m3
North Carolina
Moore County
No air monitoring
North Carolina
Nash County
No air monitoring
North Carolina
New Hanover County
4.4µg/m3
North Carolina
Northampton County
6.7µg/m3
North Carolina
Onslow County
No air monitoring
North Carolina
Orange County
No air monitoring
North Carolina
Pamlico County
No air monitoring
North Carolina
Pasquotank County
No air monitoring
North Carolina
Pender County
No air monitoring
North Carolina
Perquimans County
No air monitoring
North Carolina
Person County
No air monitoring
North Carolina
Pitt County
6.1µg/m3
North Carolina
Polk County
No air monitoring
North Carolina
Randolph County
No air monitoring
North Carolina
Richmond County
No air monitoring
North Carolina
Robeson County
No air monitoring
North Carolina
Rockingham County
No air monitoring
North Carolina
Rowan County
7.7µg/m3
North Carolina
Rutherford County
No air monitoring
North Carolina
Sampson County
No air monitoring
North Carolina
Scotland County
No air monitoring
North Carolina
Stanly County
No air monitoring
North Carolina
Stokes County
No air monitoring
North Carolina
Surry County
No air monitoring
North Carolina
Swain County
6µg/m3
North Carolina
Transylvania County
No air monitoring
North Carolina
Tyrrell County
No air monitoring
North Carolina
Union County
No air monitoring
North Carolina
Vance County
No air monitoring
North Carolina
Wake County
6.9µg/m3
North Carolina
Warren County
No air monitoring
North Carolina
Washington County
No air monitoring
North Carolina
Watauga County
No air monitoring
North Carolina
Wayne County
No air monitoring
North Carolina
Wilkes County
No air monitoring
North Carolina
Wilson County
No air monitoring
North Carolina
Yadkin County
No air monitoring
North Carolina
Yancey County
No air monitoring
North Dakota
Adams County
No air monitoring
North Dakota
Barnes County
No air monitoring
North Dakota
Benson County
No air monitoring
North Dakota
Billings County
4.9µg/m3
North Dakota
Bottineau County
No air monitoring
North Dakota
Bowman County
No air monitoring
North Dakota
Burke County
6.4µg/m3
North Dakota
Burleigh County
7.7µg/m3
North Dakota
Cass County
8.3µg/m3
North Dakota
Cavalier County
No air monitoring
North Dakota
Dickey County
No air monitoring
North Dakota
Divide County
No air monitoring
North Dakota
Dunn County
5.8µg/m3
North Dakota
Eddy County
No air monitoring
North Dakota
Emmons County
No air monitoring
North Dakota
Foster County
No air monitoring
North Dakota
Golden Valley County
No air monitoring
North Dakota
Grand Forks County
No air monitoring
North Dakota
Grant County
No air monitoring
North Dakota
Griggs County
No air monitoring
North Dakota
Hettinger County
No air monitoring
North Dakota
Kidder County
No air monitoring
North Dakota
LaMoure County
No air monitoring
North Dakota
Logan County
No air monitoring
North Dakota
McHenry County
No air monitoring
North Dakota
McIntosh County
No air monitoring
North Dakota
McKenzie County
5.4µg/m3
North Dakota
McLean County
No air monitoring
North Dakota
Mercer County
6µg/m3
North Dakota
Morton County
No air monitoring
North Dakota
Mountrail County
No air monitoring
North Dakota
Nelson County
No air monitoring
North Dakota
Oliver County
7.2µg/m3
North Dakota
Pembina County
No air monitoring
North Dakota
Pierce County
No air monitoring
North Dakota
Ramsey County
No air monitoring
North Dakota
Ransom County
No air monitoring
North Dakota
Renville County
No air monitoring
North Dakota
Richland County
No air monitoring
North Dakota
Rolette County
No air monitoring
North Dakota
Sargent County
No air monitoring
North Dakota
Sheridan County
No air monitoring
North Dakota
Sioux County
No air monitoring
North Dakota
Slope County
No air monitoring
North Dakota
Stark County
No air monitoring
North Dakota
Steele County
No air monitoring
North Dakota
Stutsman County
No air monitoring
North Dakota
Towner County
No air monitoring
North Dakota
Traill County
No air monitoring
North Dakota
Walsh County
No air monitoring
North Dakota
Ward County
6.3µg/m3
North Dakota
Wells County
No air monitoring
North Dakota
Williams County
No air monitoring
Ohio
Adams County
No air monitoring
Ohio
Allen County
6.4µg/m3
Ohio
Ashland County
No air monitoring
Ohio
Ashtabula County
No air monitoring
Ohio
Athens County
5.9µg/m3
Ohio
Auglaize County
No air monitoring
Ohio
Belmont County
No air monitoring
Ohio
Brown County
No air monitoring
Ohio
Butler County
No air monitoring
Ohio
Carroll County
No air monitoring
Ohio
Champaign County
No air monitoring
Ohio
Clark County
8.4µg/m3
Ohio
Clermont County
No air monitoring
Ohio
Clinton County
No air monitoring
Ohio
Columbiana County
No air monitoring
Ohio
Coshocton County
No air monitoring
Ohio
Crawford County
No air monitoring
Ohio
Cuyahoga County
9.3µg/m3
Ohio
Darke County
No air monitoring
Ohio
Defiance County
No air monitoring
Ohio
Delaware County
No air monitoring
Ohio
Erie County
No air monitoring
Ohio
Fairfield County
No air monitoring
Ohio
Fayette County
No air monitoring
Ohio
Franklin County
8.8µg/m3
Ohio
Fulton County
No air monitoring
Ohio
Gallia County
No air monitoring
Ohio
Geauga County
No air monitoring
Ohio
Greene County
No air monitoring
Ohio
Guernsey County
No air monitoring
Ohio
Hamilton County
10.5µg/m3
Ohio
Hancock County
No air monitoring
Ohio
Hardin County
No air monitoring
Ohio
Harrison County
No air monitoring
Ohio
Henry County
No air monitoring
Ohio
Highland County
No air monitoring
Ohio
Hocking County
No air monitoring
Ohio
Holmes County
No air monitoring
Ohio
Huron County
No air monitoring
Ohio
Jackson County
No air monitoring
Ohio
Jefferson County
No air monitoring
Ohio
Knox County
No air monitoring
Ohio
Lake County
6.4µg/m3
Ohio
Lawrence County
8.1µg/m3
Ohio
Licking County
No air monitoring
Ohio
Logan County
No air monitoring
Ohio
Lorain County
No air monitoring
Ohio
Lucas County
No air monitoring
Ohio
Madison County
No air monitoring
Ohio
Mahoning County
No air monitoring
Ohio
Marion County
No air monitoring
Ohio
Medina County
6.6µg/m3
Ohio
Meigs County
No air monitoring
Ohio
Mercer County
No air monitoring
Ohio
Miami County
No air monitoring
Ohio
Monroe County
No air monitoring
Ohio
Montgomery County
9.4µg/m3
Ohio
Morgan County
No air monitoring
Ohio
Morrow County
No air monitoring
Ohio
Muskingum County
No air monitoring
Ohio
Noble County
No air monitoring
Ohio
Ottawa County
No air monitoring
Ohio
Paulding County
No air monitoring
Ohio
Perry County
No air monitoring
Ohio
Pickaway County
No air monitoring
Ohio
Pike County
No air monitoring
Ohio
Portage County
No air monitoring
Ohio
Preble County
8.1µg/m3
Ohio
Putnam County
No air monitoring
Ohio
Richland County
No air monitoring
Ohio
Ross County
No air monitoring
Ohio
Sandusky County
No air monitoring
Ohio
Scioto County
No air monitoring
Ohio
Seneca County
No air monitoring
Ohio
Shelby County
No air monitoring
Ohio
Stark County
9.2µg/m3
Ohio
Summit County
8.4µg/m3
Ohio
Trumbull County
7.4µg/m3
Ohio
Tuscarawas County
No air monitoring
Ohio
Union County
No air monitoring
Ohio
Van Wert County
No air monitoring
Ohio
Vinton County
No air monitoring
Ohio
Warren County
No air monitoring
Ohio
Washington County
No air monitoring
Ohio
Wayne County
No air monitoring
Ohio
Williams County
No air monitoring
Ohio
Wood County
No air monitoring
Ohio
Wyandot County
No air monitoring
Oklahoma
Adair County
No air monitoring
Oklahoma
Alfalfa County
No air monitoring
Oklahoma
Atoka County
No air monitoring
Oklahoma
Beaver County
No air monitoring
Oklahoma
Beckham County
No air monitoring
Oklahoma
Blaine County
No air monitoring
Oklahoma
Bryan County
No air monitoring
Oklahoma
Caddo County
No air monitoring
Oklahoma
Canadian County
No air monitoring
Oklahoma
Carter County
8.7µg/m3
Oklahoma
Cherokee County
No air monitoring
Oklahoma
Choctaw County
No air monitoring
Oklahoma
Cimarron County
No air monitoring
Oklahoma
Cleveland County
10.3µg/m3
Oklahoma
Coal County
No air monitoring
Oklahoma
Comanche County
8µg/m3
Oklahoma
Cotton County
No air monitoring
Oklahoma
Craig County
No air monitoring
Oklahoma
Creek County
No air monitoring
Oklahoma
Custer County
No air monitoring
Oklahoma
Delaware County
No air monitoring
Oklahoma
Dewey County
7.7µg/m3
Oklahoma
Ellis County
No air monitoring
Oklahoma
Garfield County
No air monitoring
Oklahoma
Garvin County
No air monitoring
Oklahoma
Grady County
No air monitoring
Oklahoma
Grant County
No air monitoring
Oklahoma
Greer County
No air monitoring
Oklahoma
Harmon County
No air monitoring
Oklahoma
Harper County
No air monitoring
Oklahoma
Haskell County
No air monitoring
Oklahoma
Hughes County
No air monitoring
Oklahoma
Jackson County
No air monitoring
Oklahoma
Jefferson County
No air monitoring
Oklahoma
Johnston County
No air monitoring
Oklahoma
Kay County
9.9µg/m3
Oklahoma
Kingfisher County
No air monitoring
Oklahoma
Kiowa County
No air monitoring
Oklahoma
Latimer County
No air monitoring
Oklahoma
Le Flore County
No air monitoring
Oklahoma
Lincoln County
No air monitoring
Oklahoma
Logan County
No air monitoring
Oklahoma
Love County
No air monitoring
Oklahoma
McClain County
No air monitoring
Oklahoma
McCurtain County
No air monitoring
Oklahoma
McIntosh County
No air monitoring
Oklahoma
Major County
No air monitoring
Oklahoma
Marshall County
No air monitoring
Oklahoma
Mayes County
No air monitoring
Oklahoma
Murray County
No air monitoring
Oklahoma
Muskogee County
No air monitoring
Oklahoma
Noble County
No air monitoring
Oklahoma
Nowata County
No air monitoring
Oklahoma
Okfuskee County
No air monitoring
Oklahoma
Oklahoma County
10.1µg/m3
Oklahoma
Okmulgee County
No air monitoring
Oklahoma
Osage County
No air monitoring
Oklahoma
Ottawa County
No air monitoring
Oklahoma
Pawnee County
No air monitoring
Oklahoma
Payne County
No air monitoring
Oklahoma
Pittsburg County
8.9µg/m3
Oklahoma
Pontotoc County
No air monitoring
Oklahoma
Pottawatomie County
No air monitoring
Oklahoma
Pushmataha County
No air monitoring
Oklahoma
Roger Mills County
No air monitoring
Oklahoma
Rogers County
No air monitoring
Oklahoma
Seminole County
No air monitoring
Oklahoma
Sequoyah County
7.7µg/m3
Oklahoma
Stephens County
No air monitoring
Oklahoma
Texas County
No air monitoring
Oklahoma
Tillman County
No air monitoring
Oklahoma
Tulsa County
9.2µg/m3
Oklahoma
Wagoner County
No air monitoring
Oklahoma
Washington County
No air monitoring
Oklahoma
Washita County
No air monitoring
Oklahoma
Woods County
No air monitoring
Oklahoma
Woodward County
No air monitoring
Oregon
Baker County
No air monitoring
Oregon
Benton County
No air monitoring
Oregon
Clackamas County
No air monitoring
Oregon
Clatsop County
No air monitoring
Oregon
Columbia County
No air monitoring
Oregon
Coos County
No air monitoring
Oregon
Crook County
10µg/m3
Oregon
Curry County
No air monitoring
Oregon
Deschutes County
No air monitoring
Oregon
Douglas County
No air monitoring
Oregon
Gilliam County
No air monitoring
Oregon
Grant County
No air monitoring
Oregon
Harney County
10.8µg/m3
Oregon
Hood River County
No air monitoring
Oregon
Jackson County
13.5µg/m3
Oregon
Jefferson County
No air monitoring
Oregon
Josephine County
No air monitoring
Oregon
Klamath County
15.6µg/m3
Oregon
Lake County
No air monitoring
Oregon
Lane County
14.7µg/m3
Oregon
Lincoln County
No air monitoring
Oregon
Linn County
No air monitoring
Oregon
Malheur County
No air monitoring
Oregon
Marion County
No air monitoring
Oregon
Morrow County
No air monitoring
Oregon
Multnomah County
8.1µg/m3
Oregon
Polk County
No air monitoring
Oregon
Sherman County
No air monitoring
Oregon
Tillamook County
No air monitoring
Oregon
Umatilla County
No air monitoring
Oregon
Union County
No air monitoring
Oregon
Wallowa County
No air monitoring
Oregon
Wasco County
No air monitoring
Oregon
Washington County
8.1µg/m3
Oregon
Wheeler County
No air monitoring
Oregon
Yamhill County
No air monitoring
Pennsylvania
Adams County
No air monitoring
Pennsylvania
Allegheny County
10.9µg/m3
Pennsylvania
Armstrong County
8.9µg/m3
Pennsylvania
Beaver County
8.6µg/m3
Pennsylvania
Bedford County
No air monitoring
Pennsylvania
Berks County
8.1µg/m3
Pennsylvania
Blair County
8.3µg/m3
Pennsylvania
Bradford County
No air monitoring
Pennsylvania
Bucks County
No air monitoring
Pennsylvania
Butler County
No air monitoring
Pennsylvania
Cambria County
9.6µg/m3
Pennsylvania
Cameron County
No air monitoring
Pennsylvania
Carbon County
No air monitoring
Pennsylvania
Centre County
7.8µg/m3
Pennsylvania
Chester County
8.5µg/m3
Pennsylvania
Clarion County
No air monitoring
Pennsylvania
Clearfield County
No air monitoring
Pennsylvania
Clinton County
No air monitoring
Pennsylvania
Columbia County
No air monitoring
Pennsylvania
Crawford County
No air monitoring
Pennsylvania
Cumberland County
7.6µg/m3
Pennsylvania
Dauphin County
9.9µg/m3
Pennsylvania
Delaware County
9.1µg/m3
Pennsylvania
Elk County
No air monitoring
Pennsylvania
Erie County
No air monitoring
Pennsylvania
Fayette County
No air monitoring
Pennsylvania
Forest County
No air monitoring
Pennsylvania
Franklin County
No air monitoring
Pennsylvania
Fulton County
No air monitoring
Pennsylvania
Greene County
No air monitoring
Pennsylvania
Huntingdon County
No air monitoring
Pennsylvania
Indiana County
No air monitoring
Pennsylvania
Jefferson County
No air monitoring
Pennsylvania
Juniata County
No air monitoring
Pennsylvania
Lackawanna County
7.5µg/m3
Pennsylvania
Lancaster County
9.2µg/m3
Pennsylvania
Lawrence County
No air monitoring
Pennsylvania
Lebanon County
No air monitoring
Pennsylvania
Lehigh County
8.7µg/m3
Pennsylvania
Luzerne County
No air monitoring
Pennsylvania
Lycoming County
No air monitoring
Pennsylvania
Mc Kean County
No air monitoring
Pennsylvania
Mercer County
No air monitoring
Pennsylvania
Mifflin County
No air monitoring
Pennsylvania
Monroe County
No air monitoring
Pennsylvania
Montgomery County
8.2µg/m3
Pennsylvania
Montour County
No air monitoring
Pennsylvania
Northampton County
8.1µg/m3
Pennsylvania
Northumberland County
No air monitoring
Pennsylvania
Perry County
No air monitoring
Pennsylvania
Philadelphia County
9.1µg/m3
Pennsylvania
Pike County
No air monitoring
Pennsylvania
Potter County
No air monitoring
Pennsylvania
Schuylkill County
No air monitoring
Pennsylvania
Snyder County
No air monitoring
Pennsylvania
Somerset County
No air monitoring
Pennsylvania
Sullivan County
No air monitoring
Pennsylvania
Susquehanna County
No air monitoring
Pennsylvania
Tioga County
No air monitoring
Pennsylvania
Union County
No air monitoring
Pennsylvania
Venango County
No air monitoring
Pennsylvania
Warren County
No air monitoring
Pennsylvania
Washington County
8.5µg/m3
Pennsylvania
Wayne County
No air monitoring
Pennsylvania
Westmoreland County
No air monitoring
Pennsylvania
Wyoming County
No air monitoring
Pennsylvania
York County
9.6µg/m3
Rhode Island
Bristol County
No air monitoring
Rhode Island
Kent County
4.5µg/m3
Rhode Island
Newport County
No air monitoring
Rhode Island
Providence County
7.9µg/m3
Rhode Island
Washington County
4.3µg/m3
South Carolina
Abbeville County
No air monitoring
South Carolina
Aiken County
No air monitoring
South Carolina
Allendale County
No air monitoring
South Carolina
Anderson County
No air monitoring
South Carolina
Bamberg County
No air monitoring
South Carolina
Barnwell County
No air monitoring
South Carolina
Beaufort County
No air monitoring
South Carolina
Berkeley County
No air monitoring
South Carolina
Calhoun County
No air monitoring
South Carolina
Charleston County
7.2µg/m3
South Carolina
Cherokee County
No air monitoring
South Carolina
Chester County
No air monitoring
South Carolina
Chesterfield County
6.7µg/m3
South Carolina
Clarendon County
No air monitoring
South Carolina
Colleton County
No air monitoring
South Carolina
Darlington County
No air monitoring
South Carolina
Dillon County
No air monitoring
South Carolina
Dorchester County
No air monitoring
South Carolina
Edgefield County
7.6µg/m3
South Carolina
Fairfield County
No air monitoring
South Carolina
Florence County
7.5µg/m3
South Carolina
Georgetown County
No air monitoring
South Carolina
Greenville County
8.2µg/m3
South Carolina
Greenwood County
No air monitoring
South Carolina
Hampton County
No air monitoring
South Carolina
Horry County
No air monitoring
South Carolina
Jasper County
No air monitoring
South Carolina
Kershaw County
No air monitoring
South Carolina
Lancaster County
No air monitoring
South Carolina
Laurens County
No air monitoring
South Carolina
Lee County
No air monitoring
South Carolina
Lexington County
7.9µg/m3
South Carolina
McCormick County
No air monitoring
South Carolina
Marion County
No air monitoring
South Carolina
Marlboro County
No air monitoring
South Carolina
Newberry County
No air monitoring
South Carolina
Oconee County
No air monitoring
South Carolina
Orangeburg County
No air monitoring
South Carolina
Pickens County
No air monitoring
South Carolina
Richland County
7µg/m3
South Carolina
Saluda County
No air monitoring
South Carolina
Spartanburg County
8.1µg/m3
South Carolina
Sumter County
No air monitoring
South Carolina
Union County
No air monitoring
South Carolina
Williamsburg County
No air monitoring
South Carolina
York County
6.9µg/m3
South Dakota
Aurora County
No air monitoring
South Dakota
Beadle County
No air monitoring
South Dakota
Bennett County
No air monitoring
South Dakota
Bon Homme County
No air monitoring
South Dakota
Brookings County
4.9µg/m3
South Dakota
Brown County
5.5µg/m3
South Dakota
Brule County
No air monitoring
South Dakota
Buffalo County
No air monitoring
South Dakota
Butte County
No air monitoring
South Dakota
Campbell County
No air monitoring
South Dakota
Charles Mix County
No air monitoring
South Dakota
Clark County
No air monitoring
South Dakota
Clay County
No air monitoring
South Dakota
Codington County
7.6µg/m3
South Dakota
Corson County
No air monitoring
South Dakota
Custer County
4.1µg/m3
South Dakota
Davison County
No air monitoring
South Dakota
Day County
No air monitoring
South Dakota
Deuel County
No air monitoring
South Dakota
Dewey County
No air monitoring
South Dakota
Douglas County
No air monitoring
South Dakota
Edmunds County
No air monitoring
South Dakota
Fall River County
No air monitoring
South Dakota
Faulk County
No air monitoring
South Dakota
Grant County
No air monitoring
South Dakota
Gregory County
No air monitoring
South Dakota
Haakon County
No air monitoring
South Dakota
Hamlin County
No air monitoring
South Dakota
Hand County
No air monitoring
South Dakota
Hanson County
No air monitoring
South Dakota
Harding County
No air monitoring
South Dakota
Hughes County
3.3µg/m3
South Dakota
Hutchinson County
No air monitoring
South Dakota
Hyde County
No air monitoring
South Dakota
Jackson County
4.5µg/m3
South Dakota
Jerauld County
No air monitoring
South Dakota
Jones County
No air monitoring
South Dakota
Kingsbury County
No air monitoring
South Dakota
Lake County
No air monitoring
South Dakota
Lawrence County
No air monitoring
South Dakota
Lincoln County
No air monitoring
South Dakota
Lyman County
No air monitoring
South Dakota
McCook County
No air monitoring
South Dakota
McPherson County
No air monitoring
South Dakota
Marshall County
No air monitoring
South Dakota
Meade County
No air monitoring
South Dakota
Mellette County
No air monitoring
South Dakota
Miner County
No air monitoring
South Dakota
Minnehaha County
No air monitoring
South Dakota
Moody County
No air monitoring
South Dakota
Pennington County
7.3µg/m3
South Dakota
Perkins County
No air monitoring
South Dakota
Potter County
No air monitoring
South Dakota
Roberts County
No air monitoring
South Dakota
Sanborn County
No air monitoring
South Dakota
Shannon County
No air monitoring
South Dakota
Spink County
No air monitoring
South Dakota
Stanley County
No air monitoring
South Dakota
Sully County
No air monitoring
South Dakota
Todd County
No air monitoring
South Dakota
Tripp County
No air monitoring
South Dakota
Turner County
No air monitoring
South Dakota
Union County
No air monitoring
South Dakota
Walworth County
No air monitoring
South Dakota
Yankton County
No air monitoring
South Dakota
Ziebach County
No air monitoring
Tennessee
Anderson County
No air monitoring
Tennessee
Bedford County
No air monitoring
Tennessee
Benton County
No air monitoring
Tennessee
Bledsoe County
No air monitoring
Tennessee
Blount County
7µg/m3
Tennessee
Bradley County
No air monitoring
Tennessee
Campbell County
No air monitoring
Tennessee
Cannon County
No air monitoring
Tennessee
Carroll County
No air monitoring
Tennessee
Carter County
No air monitoring
Tennessee
Cheatham County
No air monitoring
Tennessee
Chester County
No air monitoring
Tennessee
Claiborne County
No air monitoring
Tennessee
Clay County
No air monitoring
Tennessee
Cocke County
No air monitoring
Tennessee
Coffee County
No air monitoring
Tennessee
Crockett County
No air monitoring
Tennessee
Cumberland County
No air monitoring
Tennessee
Davidson County
9.1µg/m3
Tennessee
Decatur County
No air monitoring
Tennessee
DeKalb County
No air monitoring
Tennessee
Dickson County
No air monitoring
Tennessee
Dyer County
7.2µg/m3
Tennessee
Fayette County
No air monitoring
Tennessee
Fentress County
No air monitoring
Tennessee
Franklin County
No air monitoring
Tennessee
Gibson County
No air monitoring
Tennessee
Giles County
No air monitoring
Tennessee
Grainger County
No air monitoring
Tennessee
Greene County
No air monitoring
Tennessee
Grundy County
No air monitoring
Tennessee
Hamblen County
No air monitoring
Tennessee
Hamilton County
7.7µg/m3
Tennessee
Hancock County
No air monitoring
Tennessee
Hardeman County
No air monitoring
Tennessee
Hardin County
No air monitoring
Tennessee
Hawkins County
No air monitoring
Tennessee
Haywood County
No air monitoring
Tennessee
Henderson County
No air monitoring
Tennessee
Henry County
No air monitoring
Tennessee
Hickman County
No air monitoring
Tennessee
Houston County
No air monitoring
Tennessee
Humphreys County
No air monitoring
Tennessee
Jackson County
No air monitoring
Tennessee
Jefferson County
No air monitoring
Tennessee
Johnson County
No air monitoring
Tennessee
Knox County
9.4µg/m3
Tennessee
Lake County
No air monitoring
Tennessee
Lauderdale County
No air monitoring
Tennessee
Lawrence County
5.8µg/m3
Tennessee
Lewis County
No air monitoring
Tennessee
Lincoln County
No air monitoring
Tennessee
Loudon County
6.6µg/m3
Tennessee
McMinn County
7.4µg/m3
Tennessee
McNairy County
No air monitoring
Tennessee
Macon County
No air monitoring
Tennessee
Madison County
7.4µg/m3
Tennessee
Marion County
No air monitoring
Tennessee
Marshall County
No air monitoring
Tennessee
Maury County
6.6µg/m3
Tennessee
Meigs County
No air monitoring
Tennessee
Monroe County
No air monitoring
Tennessee
Montgomery County
7µg/m3
Tennessee
Moore County
No air monitoring
Tennessee
Morgan County
No air monitoring
Tennessee
Obion County
No air monitoring
Tennessee
Overton County
No air monitoring
Tennessee
Perry County
No air monitoring
Tennessee
Pickett County
No air monitoring
Tennessee
Polk County
No air monitoring
Tennessee
Putnam County
6.6µg/m3
Tennessee
Rhea County
No air monitoring
Tennessee
Roane County
7.1µg/m3
Tennessee
Robertson County
No air monitoring
Tennessee
Rutherford County
No air monitoring
Tennessee
Scott County
No air monitoring
Tennessee
Sequatchie County
No air monitoring
Tennessee
Sevier County
No air monitoring
Tennessee
Shelby County
8.5µg/m3
Tennessee
Smith County
No air monitoring
Tennessee
Stewart County
No air monitoring
Tennessee
Sullivan County
6.3µg/m3
Tennessee
Sumner County
7.4µg/m3
Tennessee
Tipton County
No air monitoring
Tennessee
Trousdale County
No air monitoring
Tennessee
Unicoi County
No air monitoring
Tennessee
Union County
No air monitoring
Tennessee
Van Buren County
No air monitoring
Tennessee
Warren County
No air monitoring
Tennessee
Washington County
No air monitoring
Tennessee
Wayne County
No air monitoring
Tennessee
Weakley County
No air monitoring
Tennessee
White County
No air monitoring
Tennessee
Williamson County
No air monitoring
Tennessee
Wilson County
No air monitoring
Texas
Anderson County
No air monitoring
Texas
Andrews County
No air monitoring
Texas
Angelina County
No air monitoring
Texas
Aransas County
No air monitoring
Texas
Archer County
No air monitoring
Texas
Armstrong County
No air monitoring
Texas
Atascosa County
No air monitoring
Texas
Austin County
No air monitoring
Texas
Bailey County
No air monitoring
Texas
Bandera County
No air monitoring
Texas
Bastrop County
No air monitoring
Texas
Baylor County
No air monitoring
Texas
Bee County
No air monitoring
Texas
Bell County
7.4µg/m3
Texas
Bexar County
8.6µg/m3
Texas
Blanco County
No air monitoring
Texas
Borden County
No air monitoring
Texas
Bosque County
No air monitoring
Texas
Bowie County
10µg/m3
Texas
Brazoria County
No air monitoring
Texas
Brazos County
No air monitoring
Texas
Brewster County
5.5µg/m3
Texas
Briscoe County
No air monitoring
Texas
Brooks County
No air monitoring
Texas
Brown County
No air monitoring
Texas
Burleson County
No air monitoring
Texas
Burnet County
No air monitoring
Texas
Caldwell County
No air monitoring
Texas
Calhoun County
No air monitoring
Texas
Callahan County
No air monitoring
Texas
Cameron County
9.1µg/m3
Texas
Camp County
No air monitoring
Texas
Carson County
No air monitoring
Texas
Cass County
No air monitoring
Texas
Castro County
No air monitoring
Texas
Chambers County
No air monitoring
Texas
Cherokee County
No air monitoring
Texas
Childress County
No air monitoring
Texas
Clay County
No air monitoring
Texas
Cochran County
No air monitoring
Texas
Coke County
No air monitoring
Texas
Coleman County
No air monitoring
Texas
Collin County
No air monitoring
Texas
Collingsworth County
No air monitoring
Texas
Colorado County
No air monitoring
Texas
Comal County
No air monitoring
Texas
Comanche County
No air monitoring
Texas
Concho County
No air monitoring
Texas
Cooke County
No air monitoring
Texas
Coryell County
No air monitoring
Texas
Cottle County
No air monitoring
Texas
Crane County
No air monitoring
Texas
Crockett County
No air monitoring
Texas
Crosby County
No air monitoring
Texas
Culberson County
No air monitoring
Texas
Dallam County
No air monitoring
Texas
Dallas County
9.4µg/m3
Texas
Dawson County
No air monitoring
Texas
Deaf Smith County
No air monitoring
Texas
Delta County
No air monitoring
Texas
Denton County
7.5µg/m3
Texas
DeWitt County
No air monitoring
Texas
Dickens County
No air monitoring
Texas
Dimmit County
No air monitoring
Texas
Donley County
No air monitoring
Texas
Duval County
No air monitoring
Texas
Eastland County
No air monitoring
Texas
Ector County
7.4µg/m3
Texas
Edwards County
No air monitoring
Texas
Ellis County
No air monitoring
Texas
El Paso County
9.2µg/m3
Texas
Erath County
No air monitoring
Texas
Falls County
No air monitoring
Texas
Fannin County
No air monitoring
Texas
Fayette County
No air monitoring
Texas
Fisher County
No air monitoring
Texas
Floyd County
No air monitoring
Texas
Foard County
No air monitoring
Texas
Fort Bend County
No air monitoring
Texas
Franklin County
No air monitoring
Texas
Freestone County
No air monitoring
Texas
Frio County
No air monitoring
Texas
Gaines County
No air monitoring
Texas
Galveston County
7.9µg/m3
Texas
Garza County
No air monitoring
Texas
Gillespie County
No air monitoring
Texas
Glasscock County
No air monitoring
Texas
Goliad County
No air monitoring
Texas
Gonzales County
No air monitoring
Texas
Gray County
No air monitoring
Texas
Grayson County
No air monitoring
Texas
Gregg County
No air monitoring
Texas
Grimes County
No air monitoring
Texas
Guadalupe County
No air monitoring
Texas
Hale County
No air monitoring
Texas
Hall County
No air monitoring
Texas
Hamilton County
No air monitoring
Texas
Hansford County
No air monitoring
Texas
Hardeman County
No air monitoring
Texas
Hardin County
No air monitoring
Texas
Harris County
11.4µg/m3
Texas
Harrison County
No air monitoring
Texas
Hartley County
No air monitoring
Texas
Haskell County
No air monitoring
Texas
Hays County
No air monitoring
Texas
Hemphill County
No air monitoring
Texas
Henderson County
No air monitoring
Texas
Hidalgo County
10.1µg/m3
Texas
Hill County
No air monitoring
Texas
Hockley County
No air monitoring
Texas
Hood County
No air monitoring
Texas
Hopkins County
No air monitoring
Texas
Houston County
No air monitoring
Texas
Howard County
No air monitoring
Texas
Hudspeth County
No air monitoring
Texas
Hunt County
No air monitoring
Texas
Hutchinson County
No air monitoring
Texas
Irion County
No air monitoring
Texas
Jack County
No air monitoring
Texas
Jackson County
No air monitoring
Texas
Jasper County
No air monitoring
Texas
Jeff Davis County
No air monitoring
Texas
Jefferson County
8.3µg/m3
Texas
Jim Hogg County
No air monitoring
Texas
Jim Wells County
No air monitoring
Texas
Johnson County
No air monitoring
Texas
Jones County
No air monitoring
Texas
Karnes County
No air monitoring
Texas
Kaufman County
No air monitoring
Texas
Kendall County
No air monitoring
Texas
Kenedy County
No air monitoring
Texas
Kent County
No air monitoring
Texas
Kerr County
No air monitoring
Texas
Kimble County
No air monitoring
Texas
King County
No air monitoring
Texas
Kinney County
No air monitoring
Texas
Kleberg County
10.3µg/m3
Texas
Knox County
No air monitoring
Texas
Lamar County
No air monitoring
Texas
Lamb County
No air monitoring
Texas
Lampasas County
No air monitoring
Texas
La Salle County
No air monitoring
Texas
Lavaca County
No air monitoring
Texas
Lee County
No air monitoring
Texas
Leon County
No air monitoring
Texas
Liberty County
No air monitoring
Texas
Limestone County
No air monitoring
Texas
Lipscomb County
No air monitoring
Texas
Live Oak County
No air monitoring
Texas
Llano County
No air monitoring
Texas
Loving County
No air monitoring
Texas
Lubbock County
5.8µg/m3
Texas
Lynn County
No air monitoring
Texas
McCulloch County
No air monitoring
Texas
McLennan County
No air monitoring
Texas
McMullen County
No air monitoring
Texas
Madison County
No air monitoring
Texas
Marion County
No air monitoring
Texas
Martin County
No air monitoring
Texas
Mason County
No air monitoring
Texas
Matagorda County
No air monitoring
Texas
Maverick County
7.9µg/m3
Texas
Medina County
No air monitoring
Texas
Menard County
No air monitoring
Texas
Midland County
No air monitoring
Texas
Milam County
No air monitoring
Texas
Mills County
No air monitoring
Texas
Mitchell County
No air monitoring
Texas
Montague County
No air monitoring
Texas
Montgomery County
No air monitoring
Texas
Moore County
No air monitoring
Texas
Morris County
No air monitoring
Texas
Motley County
No air monitoring
Texas
Nacogdoches County
No air monitoring
Texas
Navarro County
No air monitoring
Texas
Newton County
No air monitoring
Texas
Nolan County
No air monitoring
Texas
Nueces County
8.7µg/m3
Texas
Ochiltree County
No air monitoring
Texas
Oldham County
No air monitoring
Texas
Orange County
8.2µg/m3
Texas
Palo Pinto County
No air monitoring
Texas
Panola County
No air monitoring
Texas
Parker County
No air monitoring
Texas
Parmer County
No air monitoring
Texas
Pecos County
No air monitoring
Texas
Polk County
No air monitoring
Texas
Potter County
5.9µg/m3
Texas
Presidio County
No air monitoring
Texas
Rains County
No air monitoring
Texas
Randall County
No air monitoring
Texas
Reagan County
No air monitoring
Texas
Real County
No air monitoring
Texas
Red River County
No air monitoring
Texas
Reeves County
No air monitoring
Texas
Refugio County
No air monitoring
Texas
Roberts County
No air monitoring
Texas
Robertson County
No air monitoring
Texas
Rockwall County
No air monitoring
Texas
Runnels County
No air monitoring
Texas
Rusk County
No air monitoring
Texas
Sabine County
No air monitoring
Texas
San Augustine County
No air monitoring
Texas
San Jacinto County
No air monitoring
Texas
San Patricio County
No air monitoring
Texas
San Saba County
No air monitoring
Texas
Schleicher County
No air monitoring
Texas
Scurry County
No air monitoring
Texas
Shackelford County
No air monitoring
Texas
Shelby County
No air monitoring
Texas
Sherman County
No air monitoring
Texas
Smith County
No air monitoring
Texas
Somervell County
No air monitoring
Texas
Starr County
No air monitoring
Texas
Stephens County
No air monitoring
Texas
Sterling County
No air monitoring
Texas
Stonewall County
No air monitoring
Texas
Sutton County
No air monitoring
Texas
Swisher County
No air monitoring
Texas
Tarrant County
9.1µg/m3
Texas
Taylor County
No air monitoring
Texas
Terrell County
No air monitoring
Texas
Terry County
No air monitoring
Texas
Throckmorton County
No air monitoring
Texas
Titus County
No air monitoring
Texas
Tom Green County
No air monitoring
Texas
Travis County
9.3µg/m3
Texas
Trinity County
No air monitoring
Texas
Tyler County
No air monitoring
Texas
Upshur County
No air monitoring
Texas
Upton County
No air monitoring
Texas
Uvalde County
No air monitoring
Texas
Val Verde County
No air monitoring
Texas
Van Zandt County
No air monitoring
Texas
Victoria County
No air monitoring
Texas
Walker County
No air monitoring
Texas
Waller County
No air monitoring
Texas
Ward County
No air monitoring
Texas
Washington County
No air monitoring
Texas
Webb County
10.1µg/m3
Texas
Wharton County
No air monitoring
Texas
Wheeler County
No air monitoring
Texas
Wichita County
No air monitoring
Texas
Wilbarger County
No air monitoring
Texas
Willacy County
No air monitoring
Texas
Williamson County
No air monitoring
Texas
Wilson County
No air monitoring
Texas
Winkler County
No air monitoring
Texas
Wise County
No air monitoring
Texas
Wood County
No air monitoring
Texas
Yoakum County
No air monitoring
Texas
Young County
No air monitoring
Texas
Zapata County
No air monitoring
Texas
Zavala County
No air monitoring
Utah
Beaver County
No air monitoring
Utah
Box Elder County
No air monitoring
Utah
Cache County
8.1µg/m3
Utah
Carbon County
No air monitoring
Utah
Daggett County
No air monitoring
Utah
Davis County
7.4µg/m3
Utah
Duchesne County
6.9µg/m3
Utah
Emery County
No air monitoring
Utah
Garfield County
No air monitoring
Utah
Grand County
No air monitoring
Utah
Iron County
5.8µg/m3
Utah
Juab County
No air monitoring
Utah
Kane County
No air monitoring
Utah
Millard County
No air monitoring
Utah
Morgan County
No air monitoring
Utah
Piute County
No air monitoring
Utah
Rich County
No air monitoring
Utah
Salt Lake County
9.9µg/m3
Utah
San Juan County
No air monitoring
Utah
Sanpete County
No air monitoring
Utah
Sevier County
No air monitoring
Utah
Summit County
No air monitoring
Utah
Tooele County
6.9µg/m3
Utah
Uintah County
6.3µg/m3
Utah
Utah County
7.5µg/m3
Utah
Wasatch County
No air monitoring
Utah
Washington County
5.6µg/m3
Utah
Wayne County
No air monitoring
Utah
Weber County
7µg/m3
Vermont
Addison County
No air monitoring
Vermont
Bennington County
5.7µg/m3
Vermont
Caledonia County
No air monitoring
Vermont
Chittenden County
6.9µg/m3
Vermont
Essex County
No air monitoring
Vermont
Franklin County
No air monitoring
Vermont
Grand Isle County
No air monitoring
Vermont
Lamoille County
No air monitoring
Vermont
Orange County
No air monitoring
Vermont
Orleans County
No air monitoring
Vermont
Rutland County
7.5µg/m3
Vermont
Washington County
No air monitoring
Vermont
Windham County
No air monitoring
Vermont
Windsor County
No air monitoring
Virginia
Accomack County
No air monitoring
Virginia
Albemarle County
7.3µg/m3
Virginia
Alleghany County
No air monitoring
Virginia
Amelia County
No air monitoring
Virginia
Amherst County
No air monitoring
Virginia
Appomattox County
No air monitoring
Virginia
Arlington County
7.1µg/m3
Virginia
Augusta County
No air monitoring
Virginia
Bath County
No air monitoring
Virginia
Bedford County
No air monitoring
Virginia
Bland County
No air monitoring
Virginia
Botetourt County
No air monitoring
Virginia
Brunswick County
No air monitoring
Virginia
Buchanan County
No air monitoring
Virginia
Buckingham County
No air monitoring
Virginia
Campbell County
No air monitoring
Virginia
Caroline County
No air monitoring
Virginia
Carroll County
No air monitoring
Virginia
Charles City County
6.1µg/m3
Virginia
Charlotte County
No air monitoring
Virginia
Chesterfield County
6.1µg/m3
Virginia
Clarke County
No air monitoring
Virginia
Craig County
No air monitoring
Virginia
Culpeper County
No air monitoring
Virginia
Cumberland County
No air monitoring
Virginia
Dickenson County
No air monitoring
Virginia
Dinwiddie County
No air monitoring
Virginia
Essex County
No air monitoring
Virginia
Fairfax County
8.3µg/m3
Virginia
Fauquier County
No air monitoring
Virginia
Floyd County
No air monitoring
Virginia
Fluvanna County
No air monitoring
Virginia
Franklin County
No air monitoring
Virginia
Frederick County
7.7µg/m3
Virginia
Giles County
No air monitoring
Virginia
Gloucester County
No air monitoring
Virginia
Goochland County
No air monitoring
Virginia
Grayson County
No air monitoring
Virginia
Greene County
No air monitoring
Virginia
Greensville County
No air monitoring
Virginia
Halifax County
No air monitoring
Virginia
Hanover County
No air monitoring
Virginia
Henrico County
7.6µg/m3
Virginia
Henry County
No air monitoring
Virginia
Highland County
No air monitoring
Virginia
Isle of Wight County
No air monitoring
Virginia
James City County
No air monitoring
Virginia
King and Queen County
No air monitoring
Virginia
King George County
No air monitoring
Virginia
King William County
No air monitoring
Virginia
Lancaster County
No air monitoring
Virginia
Lee County
No air monitoring
Virginia
Loudoun County
6.6µg/m3
Virginia
Louisa County
No air monitoring
Virginia
Lunenburg County
No air monitoring
Virginia
Madison County
No air monitoring
Virginia
Mathews County
No air monitoring
Virginia
Mecklenburg County
No air monitoring
Virginia
Middlesex County
No air monitoring
Virginia
Montgomery County
No air monitoring
Virginia
Nelson County
No air monitoring
Virginia
New Kent County
No air monitoring
Virginia
Northampton County
No air monitoring
Virginia
Northumberland County
No air monitoring
Virginia
Nottoway County
No air monitoring
Virginia
Orange County
No air monitoring
Virginia
Page County
No air monitoring
Virginia
Patrick County
No air monitoring
Virginia
Pittsylvania County
No air monitoring
Virginia
Powhatan County
No air monitoring
Virginia
Prince Edward County
No air monitoring
Virginia
Prince George County
No air monitoring
Virginia
Prince William County
No air monitoring
Virginia
Pulaski County
No air monitoring
Virginia
Rappahannock County
No air monitoring
Virginia
Richmond County
No air monitoring
Virginia
Roanoke County
7.5µg/m3
Virginia
Rockbridge County
No air monitoring
Virginia
Rockingham County
6.7µg/m3
Virginia
Russell County
No air monitoring
Virginia
Scott County
No air monitoring
Virginia
Shenandoah County
No air monitoring
Virginia
Smyth County
No air monitoring
Virginia
Southampton County
No air monitoring
Virginia
Spotsylvania County
No air monitoring
Virginia
Stafford County
No air monitoring
Virginia
Surry County
No air monitoring
Virginia
Sussex County
No air monitoring
Virginia
Tazewell County
No air monitoring
Virginia
Warren County
No air monitoring
Virginia
Washington County
No air monitoring
Virginia
Westmoreland County
No air monitoring
Virginia
Wise County
No air monitoring
Virginia
Wythe County
No air monitoring
Virginia
York County
No air monitoring
Virginia
Alexandria city
No air monitoring
Virginia
Bedford city
No air monitoring
Virginia
Bristol city
6.5µg/m3
Virginia
Buena Vista city
No air monitoring
Virginia
Charlottesville city
No air monitoring
Virginia
Chesapeake city
No air monitoring
Virginia
Clifton Forge city
No air monitoring
Virginia
Colonial Heights city
No air monitoring
Virginia
Covington city
No air monitoring
Virginia
Danville city
No air monitoring
Virginia
Emporia city
No air monitoring
Virginia
Fairfax city
No air monitoring
Virginia
Falls Church city
No air monitoring
Virginia
Franklin city
No air monitoring
Virginia
Fredericksburg city
No air monitoring
Virginia
Galax city
No air monitoring
Virginia
Hampton city
6.5µg/m3
Virginia
Harrisonburg city
No air monitoring
Virginia
Hopewell city
No air monitoring
Virginia
Lexington city
No air monitoring
Virginia
Lynchburg city
5.9µg/m3
Virginia
Manassas city
No air monitoring
Virginia
Manassas Park city
No air monitoring
Virginia
Martinsville city
No air monitoring
Virginia
Newport News city
No air monitoring
Virginia
Norfolk city
6.5µg/m3
Virginia
Norton city
No air monitoring
Virginia
Petersburg city
No air monitoring
Virginia
Poquoson city
No air monitoring
Virginia
Portsmouth city
No air monitoring
Virginia
Radford city
No air monitoring
Virginia
Richmond city
7.7µg/m3
Virginia
Roanoke city
No air monitoring
Virginia
Salem city
6.5µg/m3
Virginia
South Boston city(After 1990, part of Halifax County)
No air monitoring
Virginia
Staunton city
No air monitoring
Virginia
Suffolk city
No air monitoring
Virginia
Virginia Beach city
6.7µg/m3
Virginia
Waynesboro city
No air monitoring
Virginia
Williamsburg city
No air monitoring
Virginia
Winchester city
No air monitoring
Washington
Adams County
No air monitoring
Washington
Asotin County
No air monitoring
Washington
Benton County
No air monitoring
Washington
Chelan County
No air monitoring
Washington
Clallam County
No air monitoring
Washington
Clark County
9.1µg/m3
Washington
Columbia County
No air monitoring
Washington
Cowlitz County
No air monitoring
Washington
Douglas County
No air monitoring
Washington
Ferry County
No air monitoring
Washington
Franklin County
No air monitoring
Washington
Garfield County
No air monitoring
Washington
Grant County
No air monitoring
Washington
Grays Harbor County
No air monitoring
Washington
Island County
No air monitoring
Washington
Jefferson County
No air monitoring
Washington
King County
8.5µg/m3
Washington
Kitsap County
6.4µg/m3
Washington
Kittitas County
7.5µg/m3
Washington
Klickitat County
No air monitoring
Washington
Lewis County
No air monitoring
Washington
Lincoln County
No air monitoring
Washington
Mason County
No air monitoring
Washington
Okanogan County
13.4µg/m3
Washington
Pacific County
No air monitoring
Washington
Pend Oreille County
No air monitoring
Washington
Pierce County
8.1µg/m3
Washington
San Juan County
No air monitoring
Washington
Skagit County
No air monitoring
Washington
Skamania County
No air monitoring
Washington
Snohomish County
8.9µg/m3
Washington
Spokane County
No air monitoring
Washington
Stevens County
11.6µg/m3
Washington
Thurston County
No air monitoring
Washington
Wahkiakum County
No air monitoring
Washington
Walla Walla County
No air monitoring
Washington
Whatcom County
No air monitoring
Washington
Whitman County
No air monitoring
Washington
Yakima County
11.8µg/m3
West Virginia
Barbour County
No air monitoring
West Virginia
Berkeley County
8.2µg/m3
West Virginia
Boone County
No air monitoring
West Virginia
Braxton County
No air monitoring
West Virginia
Brooke County
8.5µg/m3
West Virginia
Cabell County
7.1µg/m3
West Virginia
Calhoun County
No air monitoring
West Virginia
Clay County
No air monitoring
West Virginia
Doddridge County
No air monitoring
West Virginia
Fayette County
No air monitoring
West Virginia
Gilmer County
No air monitoring
West Virginia
Grant County
No air monitoring
West Virginia
Greenbrier County
No air monitoring
West Virginia
Hampshire County
No air monitoring
West Virginia
Hancock County
7.8µg/m3
West Virginia
Hardy County
No air monitoring
West Virginia
Harrison County
6.9µg/m3
West Virginia
Jackson County
No air monitoring
West Virginia
Jefferson County
No air monitoring
West Virginia
Kanawha County
7.5µg/m3
West Virginia
Lewis County
No air monitoring
West Virginia
Lincoln County
No air monitoring
West Virginia
Logan County
No air monitoring
West Virginia
McDowell County
No air monitoring
West Virginia
Marion County
No air monitoring
West Virginia
Marshall County
8.4µg/m3
West Virginia
Mason County
No air monitoring
West Virginia
Mercer County
No air monitoring
West Virginia
Mineral County
No air monitoring
West Virginia
Mingo County
No air monitoring
West Virginia
Monongalia County
7µg/m3
West Virginia
Monroe County
No air monitoring
West Virginia
Morgan County
No air monitoring
West Virginia
Nicholas County
No air monitoring
West Virginia
Ohio County
7.5µg/m3
West Virginia
Pendleton County
No air monitoring
West Virginia
Pleasants County
No air monitoring
West Virginia
Pocahontas County
No air monitoring
West Virginia
Preston County
No air monitoring
West Virginia
Putnam County
No air monitoring
West Virginia
Raleigh County
No air monitoring
West Virginia
Randolph County
No air monitoring
West Virginia
Ritchie County
No air monitoring
West Virginia
Roane County
No air monitoring
West Virginia
Summers County
No air monitoring
West Virginia
Taylor County
No air monitoring
West Virginia
Tucker County
No air monitoring
West Virginia
Tyler County
No air monitoring
West Virginia
Upshur County
No air monitoring
West Virginia
Wayne County
No air monitoring
West Virginia
Webster County
No air monitoring
West Virginia
Wetzel County
No air monitoring
West Virginia
Wirt County
No air monitoring
West Virginia
Wood County
7.5µg/m3
West Virginia
Wyoming County
No air monitoring
Wisconsin
Adams County
No air monitoring
Wisconsin
Ashland County
5.6µg/m3
Wisconsin
Barron County
No air monitoring
Wisconsin
Bayfield County
No air monitoring
Wisconsin
Brown County
7.8µg/m3
Wisconsin
Buffalo County
No air monitoring
Wisconsin
Burnett County
No air monitoring
Wisconsin
Calumet County
No air monitoring
Wisconsin
Chippewa County
No air monitoring
Wisconsin
Clark County
No air monitoring
Wisconsin
Columbia County
No air monitoring
Wisconsin
Crawford County
No air monitoring
Wisconsin
Dane County
8.8µg/m3
Wisconsin
Dodge County
7.9µg/m3
Wisconsin
Door County
No air monitoring
Wisconsin
Douglas County
No air monitoring
Wisconsin
Dunn County
No air monitoring
Wisconsin
Eau Claire County
8.1µg/m3
Wisconsin
Florence County
No air monitoring
Wisconsin
Fond du Lac County
No air monitoring
Wisconsin
Forest County
5.9µg/m3
Wisconsin
Grant County
8.7µg/m3
Wisconsin
Green County
No air monitoring
Wisconsin
Green Lake County
No air monitoring
Wisconsin
Iowa County
No air monitoring
Wisconsin
Iron County
No air monitoring
Wisconsin
Jackson County
No air monitoring
Wisconsin
Jefferson County
No air monitoring
Wisconsin
Juneau County
No air monitoring
Wisconsin
Kenosha County
7.9µg/m3
Wisconsin
Kewaunee County
No air monitoring
Wisconsin
La Crosse County
7.9µg/m3
Wisconsin
Lafayette County
No air monitoring
Wisconsin
Langlade County
No air monitoring
Wisconsin
Lincoln County
No air monitoring
Wisconsin
Manitowoc County
No air monitoring
Wisconsin
Marathon County
No air monitoring
Wisconsin
Marinette County
No air monitoring
Wisconsin
Marquette County
No air monitoring
Wisconsin
Menominee County
No air monitoring
Wisconsin
Milwaukee County
9.4µg/m3
Wisconsin
Monroe County
No air monitoring
Wisconsin
Oconto County
No air monitoring
Wisconsin
Oneida County
No air monitoring
Wisconsin
Outagamie County
8µg/m3
Wisconsin
Ozaukee County
No air monitoring
Wisconsin
Pepin County
No air monitoring
Wisconsin
Pierce County
No air monitoring
Wisconsin
Polk County
No air monitoring
Wisconsin
Portage County
No air monitoring
Wisconsin
Price County
No air monitoring
Wisconsin
Racine County
No air monitoring
Wisconsin
Richland County
No air monitoring
Wisconsin
Rock County
No air monitoring
Wisconsin
Rusk County
No air monitoring
Wisconsin
St. Croix County
No air monitoring
Wisconsin
Sauk County
7.7µg/m3
Wisconsin
Sawyer County
No air monitoring
Wisconsin
Shawano County
No air monitoring
Wisconsin
Sheboygan County
No air monitoring
Wisconsin
Taylor County
6.7µg/m3
Wisconsin
Trempealeau County
No air monitoring
Wisconsin
Vernon County
No air monitoring
Wisconsin
Vilas County
5.3µg/m3
Wisconsin
Walworth County
No air monitoring
Wisconsin
Washburn County
No air monitoring
Wisconsin
Washington County
No air monitoring
Wisconsin
Waukesha County
9.2µg/m3
Wisconsin
Waupaca County
No air monitoring
Wisconsin
Waushara County
No air monitoring
Wisconsin
Winnebago County
No air monitoring
Wisconsin
Wood County
No air monitoring
Wyoming
Albany County
No air monitoring
Wyoming
Big Horn County
No air monitoring
Wyoming
Campbell County
No air monitoring
Wyoming
Carbon County
No air monitoring
Wyoming
Converse County
No air monitoring
Wyoming
Crook County
No air monitoring
Wyoming
Fremont County
2µg/m3
Wyoming
Goshen County
No air monitoring
Wyoming
Hot Springs County
No air monitoring
Wyoming
Johnson County
No air monitoring
Wyoming
Laramie County
4.9µg/m3
Wyoming
Lincoln County
No air monitoring
Wyoming
Natrona County
3.8µg/m3
Wyoming
Niobrara County
No air monitoring
Wyoming
Park County
4.9µg/m3
Wyoming
Platte County
No air monitoring
Wyoming
Sheridan County
No air monitoring
Wyoming
Sublette County
3.6µg/m3
Wyoming
Sweetwater County
No air monitoring
Wyoming
Teton County
4.5µg/m3
Wyoming
Uinta County
No air monitoring
Wyoming
Washakie County
No air monitoring
Wyoming
Weston County
No air monitoring
Puerto Rico
Adjuntas Municipality
No air monitoring
Puerto Rico
Aguada Municipality
No air monitoring
Puerto Rico
Aguadilla Municipality
No air monitoring
Puerto Rico
Aguas Buenas Municipality
No air monitoring
Puerto Rico
Aibonito Municipality
No air monitoring
Puerto Rico
Añasco Municipality
No air monitoring
Puerto Rico
Arecibo Municipality
No air monitoring
Puerto Rico
Arroyo Municipality
No air monitoring
Puerto Rico
Barceloneta Municipality
No air monitoring
Puerto Rico
Barranquitas Municipality
No air monitoring
Puerto Rico
Bayamón Municipality
No air monitoring
Puerto Rico
Cabo Rojo Municipality
No air monitoring
Puerto Rico
Caguas Municipality
No air monitoring
Puerto Rico
Camuy Municipality
No air monitoring
Puerto Rico
Canóvanas Municipality
No air monitoring
Puerto Rico
Carolina Municipality
No air monitoring
Puerto Rico
Cataño Municipality
No air monitoring
Puerto Rico
Cayey Municipality
No air monitoring
Puerto Rico
Ceiba Municipality
No air monitoring
Puerto Rico
Ciales Municipality
No air monitoring
Puerto Rico
Cidra Municipality
No air monitoring
Puerto Rico
Coamo Municipality
No air monitoring
Puerto Rico
Comerío Municipality
No air monitoring
Puerto Rico
Corozal Municipality
No air monitoring
Puerto Rico
Culebra Municipality
No air monitoring
Puerto Rico
Dorado Municipality
No air monitoring
Puerto Rico
Fajardo Municipality
No air monitoring
Puerto Rico
Florida Municipality
No air monitoring
Puerto Rico
Guánica Municipality
No air monitoring
Puerto Rico
Guayama Municipality
No air monitoring
Puerto Rico
Guayanilla Municipality
No air monitoring
Puerto Rico
Guaynabo Municipality
No air monitoring
Puerto Rico
Gurabo Municipality
No air monitoring
Puerto Rico
Hatillo Municipality
No air monitoring
Puerto Rico
Hormigueros Municipality
No air monitoring
Puerto Rico
Humacao Municipality
No air monitoring
Puerto Rico
Isabela Municipality
No air monitoring
Puerto Rico
Jayuya Municipality
No air monitoring
Puerto Rico
Juana Díaz Municipality
No air monitoring
Puerto Rico
Juncos Municipality
No air monitoring
Puerto Rico
Lajas Municipality
No air monitoring
Puerto Rico
Lares Municipality
No air monitoring
Puerto Rico
Las Marías Municipality
No air monitoring
Puerto Rico
Las Piedras Municipality
No air monitoring
Puerto Rico
Loíza Municipality
No air monitoring
Puerto Rico
Luquillo Municipality
No air monitoring
Puerto Rico
Manatí Municipality
No air monitoring
Puerto Rico
Maricao Municipality
No air monitoring
Puerto Rico
Maunabo Municipality
No air monitoring
Puerto Rico
Mayagüez Municipality
No air monitoring
Puerto Rico
Moca Municipality
No air monitoring
Puerto Rico
Morovis Municipality
No air monitoring
Puerto Rico
Naguabo Municipality
No air monitoring
Puerto Rico
Naranjito Municipality
No air monitoring
Puerto Rico
Orocovis Municipality
No air monitoring
Puerto Rico
Patillas Municipality
No air monitoring
Puerto Rico
Peñuelas Municipality
No air monitoring
Puerto Rico
Ponce Municipality
No air monitoring
Puerto Rico
Quebradillas Municipality
No air monitoring
Puerto Rico
Rincón Municipality
No air monitoring
Puerto Rico
Río Grande Municipality
No air monitoring
Puerto Rico
Sabana Grande Municipality
No air monitoring
Puerto Rico
Salinas Municipality
No air monitoring
Puerto Rico
San Germán Municipality
No air monitoring
Puerto Rico
San Juan Municipality
No air monitoring
Puerto Rico
San Lorenzo Municipality
No air monitoring
Puerto Rico
San Sebastián Municipality
No air monitoring
Puerto Rico
Santa Isabel Municipality
No air monitoring
Puerto Rico
Toa Alta Municipality
No air monitoring
Puerto Rico
Toa Baja Municipality
No air monitoring
Puerto Rico
Trujillo Alto Municipality
No air monitoring
Puerto Rico
Utuado Municipality
No air monitoring
Puerto Rico
Vega Alta Municipality
No air monitoring
Puerto Rico
Vega Baja Municipality
No air monitoring
Puerto Rico
Vieques Municipality
No air monitoring
Puerto Rico
Villalba Municipality
No air monitoring
Puerto Rico
Yabucoa Municipality
No air monitoring
Puerto Rico
Yauco Municipality
No air monitoring

About the map data

Based on the U.S. Environmental Protection Agency’s “design values” for annual particulate matter pollution (PM2.5) and 8-hour ozone for U.S counties. A “design value” is the official EPA measure of whether a county complies with the primary (health-protective) annual national ambient air quality standard. Design values are derived from air quality monitoring data that comes from air quality monitors operated by governmental agencies, like EPA or states, that sample the air to measure the amount of pollutant in the air. Not all counties in the United States have an official air quality monitor.

Earthjustice’s Washington, D.C., office works at the federal level to prevent air and water pollution, combat climate change, and protect natural areas. We also work with communities in the Mid-Atlantic region and elsewhere to address severe local environmental health problems, including exposures to dangerous air contaminants in toxic hot spots, sewage backups and overflows, chemical disasters, and contamination of drinking water. The D.C. office has been in operation since 1978.