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The Office of Environmental Health Hazard Assessment (OEHHA) is adopting new cancer inhalation unit risk (IUR) and slope factors for 1-Bromopropane (1-BP) for use in the Air Toxics Hot Spots Program.
On October 26, 2022, the Office of Administrative Law approved the Office of Environmental Health Hazard Assessment’s proposal to amend Title 27, California Code of Regulations by adding new subsection 25607.2(b) to Section 25607.2. The regulation will be effective on January 1, 2023.
This 2022 report presents indicators of climate change describing how California’s climate is changing and how these changes are affecting the state and Tribal Nations.
Information on the background of Proposition 65 and links to specific regulatory content.
Risk assessment support and toxicological consultation to state and local government on human health and ecological risks associated with exposures to environmental contaminants at sites undergoing regulatory or voluntary cleanup
OEHHA is releasing the report of a risk assessment it performed associated with the October 2021 oil spill in Orange and San Diego Counties (“Pipeline P00547 Incident”).
Statewide advisory for eating fish caught in California rivers, streams, and creeks without site-specific advice.
On September 1, 2022, the Office of Administrative Law approved the Office of Environmental Health Hazard Assessment’s proposal to amend Title 27, California Code of Regulations by adopting Sections 25607.48 and 25607.49