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Diazinon: Threat to Public Health

What's at Stake

Diazinon originates from nerve gases the Nazis developed during World War II.

People exposed to diazinon can suffer muscle spasms and seizures. Severe exposures can cause coma and death. Exposure is also associated with damage to the liver and pancreas, diabetes, and non-Hodgkins lymphoma.


Diazinon is a dangerous organophosphate pesticide that poisons farmworkers, children, bystanders, fish, birds, and wildlife. EPA found health risks for diazinon, yet approved its continued use without requiring mitigation to reduce those risks and without ensuring that there are no unreasonable adverse effects, as required by federal pesticide law. This is especially true for impacts to children and agricultural communities from drift and run-off. EPA also failed to initiate or complete consultation on the impacts of diazinon to threatened and endangered species. 

Earthjustice has filed suit to compel EPA to follow the law and reassess the threats this pesticide poses to the public and the environment.

Case Updates

January 10, 2013 | Feature

What You Don't Know Can Kill You

What’s colorless and may cause cancer? The chemical industry doesn’t want you to know the answer is styrene—but Earthjustice is taking them on to reveal the truth.

July 28, 2008 | Legal Document

Diazinon complaint (07/28/08)

Laswuit asking EPA to protect farmworkers, children, and wildlife from the pesticide diazinon.