Latest News
OEHHA researches and presents information related to wildfires and its health effects including development of guidance and fact sheets, epidemiological research, and measurement of wildfire as a climate change indicator.
| Program: Public Information
At the request of the Personal Care Products Council, OEHHA hereby extends the public comment period. The Office of Environmental Health Hazard Assessment is proposing a Proposition 65 No Significant Risk Level for diethanolamine
by the dermal route and 1-bromopropane in Title 27, California Code of Regulations, section 25705(b)(1).
| Program: Proposition 65
OEHHA is releasing a draft document for public review that summarizes the carcinogenicity data and derives a cancer inhalation unit risk factor (IUR) for acrolein.
| Program: Air
OEHHA is releasing a draft document for public review that summarizes the carcinogenicity data and derives an updated cancer inhalation unit risk factor (IUR) for ethylene oxide.
| Program: Air
A general overview of the Criteria Air Pollutants (PM2.5, course particles, nitrogen dioxide and ozone) is provided, with links to health studies.
| Program: Air
Background information and general overview, with links to fact sheets and traffic exposure news.
| Program: Air
The Office of Environmental Health Hazard Assessment will convene a meeting of the Developmental and Reproductive Toxicant Identification Committee on June 18, 2026. The meeting will include a discussion and updates on the development of hazard identification materials on p,pʹ-bisphenol chemicals.
| Program: Proposition 65
CalHeatScore API allows integration of CalHeatScore data into variety of applications
| Program:
La API de CalHeatScore permite integrar los datos de CalHeatScore en diversas aplicaciones
| Program:
Governor Newsom proposing $2.5 million initiative to protect Californians from related health risks
| Program: Air