Latest News

The Office of Environmental Health Hazard Assessment (OEHHA) is releasing a draft document summarizing the carcinogenicity and derivation of a cancer inhalation unit risk factor (IUR) for 1-Bromopropane (1-BP).

This regulation establishes a No Significant Risk Level of 9.9 micrograms per day for trichloroacetic acid for purposes of Proposition 65.

The regulation will be effective on October 1, 2021. This regulation establishes a No Significant Risk Level of 2.8 micrograms per day for dibromoacetic acid for purposes of Proposition 65.

This regulation establishes a No Significant Risk Level of 17 micrograms per day for dichloroacetic acid for purposes of Proposition 65.

A state fish advisory issued today for Indian Valley Reservoir in Lake County provides safe eating advice for black bass species, Channel Catfish, Common Carp and sunfish species. 

Fish Advisory for Indian Valley Reservoir in Lake County.

An updated state fish advisory issued today for Black Butte Lake in Glenn and Tehama counties provides safe eating advice for black bass species, Channel Catfish, Common Carp, crappie species, Inland Silverside and Threadfin Shad. 

Fish advisory for Black Butte Lake.

Fact sheet, advisories, and guidelines for fish consumption in various languages.

Do you want to make a difference?  We have openings. The mission of the Office of Environmental Health Hazard Assessment is to protect and enhance public health and the environment by scientific evaluation of risks posed by hazardous substances.