The mission of the Office of Environmental Health Hazard Assessment (OEHHA) is to protect and enhance public health and the environment by scientific evaluation of risks posed by hazardous substances.


Apr 3, 2017: 2017 Children’s Environmental Health Symposium
2017 Children's Environmental Health Symposium exploring "Environmental Justice and Children”. The symposium will be held April 26, 2017 and will examine the potential factors underlying children's unique vulnerabilities to the cumulative impacts of pollution and socioeconomic and community stressors.
Apr 10, 2017: Free Training for Healthcare Providers
Courses are available on-line or on-site. Each course is approximately one hour, and continuing education credits may be provided.  Courses are available in English and Spanish.
Apr 7, 2017: List of Registered Medical Supervisors
A list of registered medical supervisors in the biomonitoring program who measure cholinesterase activity in blood samples collected from agricultural workers who regularly handle category I and II organophosphate and carbamate pesticides.