OEHHA

Our mission is to protect and enhance the health of Californians and our state's environment through scientific evaluations that inform, support and guide regulatory and other actions.
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News

Notice Of Intent to List Chemicals by the Labor Code Mechanism: Welding Fumes

The California Environmental Protection Agency’s Office of Environmental Health Hazard Assessment (OEHHA) intends to list welding fumes as known to the state to cause cancer under the Safe Drinking Water and Toxic Enforcement Act of 1986, sections 25249.5 et seq. of the Health and Safety Code (HSC), otherwise known as Proposition 65.
| Proposition 65

Notice Of Intent to List Chemicals by the Labor Code Mechanism: Hydrochlorothiazide, Voriconazole, and Tacrolimus

The California Environmental Protection Agency’s Office of Environmental Health Hazard Assessment (OEHHA) intends to list hydrochlorothiazide, voriconazole, and tacrolimus as known to the state to cause cancer under the Safe Drinking Water and Toxic Enforcement Act of 1986, sections 25249.5 et seq. of the Health and Safety Code (HSC), otherwise known as Proposition 65.
| Proposition 65

Development of Advisory Tissue Levels for Common Contaminants in California Sport-harvested Finfish and Shellfish: Cadmium

Description of the process of developing Advisory Tissue Levels for cadmium.

| Fish

Landmark Study Finds No Significant Risk from Key Component of Synthetic Turf Fields

The California Office of Environmental Health Hazard Assessment released a study finding that recycled tires used as crumb rubber in synthetic turf are not likely to harm users or spectators.
| Risk Assessment

Release of the Final Report on Synthetic Turf

The Office of Environmental Health Hazard Assessment (OEHHA) is announcing the release of the final report on the potential health risks associated with the use by athletes, referees, coaches and spectators of synthetic turf fields.
| Risk Assessment

Fish Advisory for Los Vaqueros Reservoir Offers Safe-Eating Advice for Six Species

Fish consumption advisory for Los Vaqueros Reservoir in Contra Costa County.
| Fish

Health-Protective Concentration for Noncancer Effects of Hexavalent Chromium

OEHHA has finalized a health-protective concentration for noncancer effects of hexavalent chromium (Cr(VI)) in drinking water, as part of the process of updating the Cr(VI) Public Health Goal.
| Water

OEHHA comments on US EPA’s Updated Draft Risk Calculation Memorandum on Formaldehyde

OEHHA has submitted comments on US EPA’s Updated Draft Risk Calculation Memorandum for a revised Risk Evaluation for Formaldehyde under the Toxic Substances Control Act (TSCA).
| Risk Assessment

Draft CalEnviroScreen 5.0

CalEnviroScreen 5.0
| CalEnviroScreen

Oil Spills & Seafood Safety

Evaluation of seafood safety consumption following oil spills

| Fish