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State recommendations to EPA under the 2024 NAAQS, obtained via a Freedom of Information Act (FOIA) request from Sierra Club.

State recommendations to EPA under the 2024 NAAQS, obtained via a Freedom of Information Act (FOIA) request from Sierra Club.

State recommendations to EPA under the 2024 NAAQS, obtained via a Freedom of Information Act (FOIA) request from Sierra Club.

State recommendations to EPA under the 2024 NAAQS, obtained via a Freedom of Information Act (FOIA) request from Sierra Club.

State recommendations to EPA under the 2024 NAAQS, obtained via a Freedom of Information Act (FOIA) request from Sierra Club.

106 groups oppose EPA abandoning its defense of the soot standard.

A February 2026 deadline calls for EPA to address air pollution from soot, but it appears the agency has taken few steps, if any, to do so

In 2024, the U.S. Environmental Protection Agency (EPA) adopted a rule that would initiate a series of actions to reduce exposure to harmful levels of fine particulate matter. This paper assesses where EPA stands in the process of implementing that rule and shines a light on why it is so important to faithfully implement it, as Congress mandated EPA to do under the Clean Air Act.

With environmental enforcement at a historic low, it’s open season for polluters.

Abandoning soot standards would cause more asthma attacks, heart disease, and early death — especially in vulnerable communities

The Environmental Protection Agency’s court filing asks the U.S, Court of Appeals for the D.C. Circuit to strike down the soot standard.

Ruling will likely bring significant energy savings and reduce energy costs for consumers

Lawsuit challenges unprecedented presidential carve-out that lets 50 chemical plants spew cancer-causing pollutants for two more years

The agency will now uphold the 2024 air standards, which set caps on emissions from these facilities

Yet again, polluters’ sky-is-falling predictions — this time, of permitting gridlock — prove false.

On Aug. 13, 2025, Environmental Protection Agency (EPA) filed a motion for an abeyance in regard to litigation for soot air pollution National Ambient Air Quality Standards (NAAQS).

The agency’s delay keeps pollutants flowing into nearby communities

Proclamations let chemical companies, coal power plants, and other major polluters dodge clean air standards in at least 30 states and U.S. territories