Office of Environmental Health Hazard Assessment

Office of Environmental Health Hazard Assessment Mission: To protect & enhance the health of Californians & our environment through scientific evals. Gov. OEHHA employs a staff of 120.

OEHHA is one of six departments within the California Environmental Protection Agency (Cal/EPA). Jerry Brown appointed George Alexeeff, Ph.D., as OEHHA's director in 2012. Approximately two-thirds of the staff are scientists, including toxicologists, epidemiologists, and research scientists. Approximately 70 percent of OEHHA's scientists are Ph.D.s, M.D.s, or veterinarians.

06/12/2026

Many parts of California will be experiencing intense heat today and throughout the weekend. Check out CalHeatScore for cooling center locations near you.

A public mtg of the DARTIC will be held next week, featuring discussion of a proposal to develop hazard identification m...
06/11/2026

A public mtg of the DARTIC will be held next week, featuring discussion of a proposal to develop hazard identification materials for p,pʹ-bisphenol chemicals, for consideration next year.

We welcome comments, online listeners, and in-person attendees: oehha.ca.gov/events-search

CalHeatScore, California’s heat-health tool, is showing scores of 3 and 4 for multiple regions across California this we...
06/10/2026

CalHeatScore, California’s heat-health tool, is showing scores of 3 and 4 for multiple regions across California this week. You can use CalHeatScore to:
• See daily heat health risk updates and rankings
• Get heat safety tips
• Find locations near you to keep cool during the heat

To access the tool and find more information visit Calheatscore.calepa.ca.gov. Stay hydrated, keep shade options close, and be sure to protect yourself with sunscreen and hats. Stay informed, stay safe.

06/08/2026
06/05/2026

This , we reaffirm our commitment to protecting the environment so our world’s natural wonders may continue to inspire us and future generations.

06/04/2026
06/01/2026

Today marks the beginning of a month-long recognition & celebration of identity & community. We stand for & support inclusivity, diversity & love this & every month. 🏳️‍🌈🏳️‍⚧️

OEHHA is committed to strengthening collaboration with universities across California, and this week we had the privileg...
06/01/2026

OEHHA is committed to strengthening collaboration with universities across California, and this week we had the privilege of visiting UC Davis.

We toured the BioMEMS Lab and the Superfund Research Program, gaining valuable insight into innovative research that is driving real-world impact.

Our goal is to identify and connect with pockets of excellence, fostering multidirectional communication with experts across the state. These collaborations help shape academic research that is not only cutting-edge but also grounded in practical application and public health impact.

Many thanks to the Environmental Toxicology and the Pharmacology and Toxicology departments for sharing their outstanding work. We look forward to continued partnership and collaboration.

Address

OEHHA Headquarters/1001 I Street
Sacramento, CA
95814

Opening Hours

Monday 8am - 5pm
Tuesday 8am - 5pm
Wednesday 8am - 5pm
Thursday 8am - 5pm
Friday 8am - 5pm

Telephone

+19163247572

Website

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