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The mission of the Office of Environmental Health Hazard Assessment (OEHHA) is to protect and enhance public health and the environment by scientific evaluation of risks posed by hazardous substances.

News

Jul 21, 2017: Notice of Proposed Rulemaking, Amendments to Article 5, New Section 25501.1, Naturally Occurring Concentrations of Listed Chemicals in Unprocessed Foods

OEHHA proposes to adopt a new Section 25501.1 in Article 5 in Title 27 of the California Code of Regulations. The new section would provide guidance for businesses and the public by establishing default natural background levels for arsenic in rice.

Proposition 65

Jul 21, 2017: Notice of Proposed Rulemaking, Amendments to Article 6 Clear and Reasonable Warnings, Hotel Exposure Warnings – New Sections 25607.32 and 25607.33

OEHHA proposes to amend Article 6 of Title 27 of the California Code of Regulations by adopting Sections 25607.32 and 25607.33.

Proposition 65

Jul 21, 2017: Notice of Proposed Rulemaking, Amendments to Certain Sections of Article 6, Clear and Reasonable Warnings

OEHHA proposes to amend certain sections of Article 6 of Title 27 of the California Code of Regulations.

Fish

Jul 20, 2017: Fish Advisory for San Francisco’s Lake Merced (North Lake) Offers Safe Eating Advice for Channel Catfish, Black Bass Species, and Rainbow Trout

Safe eating advice for three species of fish from San Francisco’s Lake Merced (North Lake).

Pesticides

Jul 14, 2017: Free Training for Healthcare Providers

Courses are available on-line or on-site. Each course is approximately one hour, and continuing education credits may be provided. Courses are available in English and Spanish.

Proposition 65

Jul 7, 2017: Chemical Listed Effective July 7, 2017 as Known to the State of California to Cause Cancer: Pentabromodiphenyl Ether Mixture [DE-71 (Technical Grade)]

Effective July 7, 2017, OEHHA is adding pentabromodiphenyl ether mixture [DE-71 (technical grade)] to the list of chemicals known to the state to cause cancer for purposes of Proposition 65, under the "authoritative bodies" mechanism.