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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.

The Office of Environmental Health Hazard Assessment (OEHHA) has amended Title 27, California Code of Regulations 25607.2(b), to provide an additional safe harbor warning option for businesses that cause significant exposures to acrylamide in food products. 

OEHHA conducts research to analyze the benefits and impacts of California’s climate actions on community air quality and health.

Fish advisory for Lower Putah Creek and Lake Solano.

The Office of Environmental Health Hazard Assessment (OEHHA) is recommending that the State Water Resources Control Board (Water Board) establish the notification level (NL) for perfluorohexanoic acid (PFHxA) at 1 part per billion (equivalent to 1 microgram per liter). This recommendation is based on OEHHA’s development of a health-protective concentration intended to prevent noncancer effects, including thyroid, nasal cavity, liver, and developmental toxicity.

The Office of Environmental Health Hazard Assessment proposes to adopt a Proposition 65 No Significant Risk Level for titanium dioxide (airborne, unbound particles of respirable size) by amending Title 27, California Code of Regulations, section 25705(c)(2).

Fish advisory for Gene Wash Reservoir in San Bernardino County.

OEHHA may send letters to interested parties that assist in understanding Proposition 65 statutes and regulations, and their application.

Childrens health reports and resources. 

Harmful algal blooms (HABs) also occur in the ocean, and can cause illnesses in humans and animals. This page provides an overview of potential marine HAB illnesses, precautions to reduce exposure, and how to report any potential illnesses that may occur.