Latest News

Fact Sheet describing OEHHA activities involving oil spills and seafood

Current Air Toxics Hot Spots Program Guidance Manual for Preparation of Health Risk Assessments

In 2015, OEHHA hosted is annual Children's Environmental Health Symposium, this time focusing on the impacts of climate change on children's health.

In 2015, OEHHA hosted is annual Children's Environmental Health Symposium, this time focusing on the impacts of climate change on children's health.

OEHHA is requesting comments as to whether styrene meets the criteria set forth in the Proposition 65 regulations for authoritative bodies listings.

Additional modification to the proposed regulation to add section 25904 to Title 27 of the California Code of Regulations.

The updated PHG for perchlorate is one part-per-billion (1 ppb) based on the inhibition of iodide uptake into the thyroid gland and the consequent disruption of thyroid hormone production.

OEHHA has adopted an updated public health goal (PHG) of 1 part per billion (ppb) for perchlorate in drinking water.  This PHG updates the 2004 perchlorate value of 6 ppb.  Perchlorate is known to block the thyroid’s ability to take in and process iodide, which is a nutrient essential to brain development, growth, heart function, and other systems.

Entry point for information on chemcials in water.

Notice of intent to list styrene as known to the State of California to cause cancer via the authoritative bodies mechanism.