Risk Assessment

Risk assessment is a scientific process of evaluating the adverse effects caused by a substance, activity, lifestyle, or natural phenomenon. OEHHA is responsible for developing and providing risk managers in state and local government agencies with toxicological and medical information relevant to decisions involving public health. State agency users of such information include all boards and departments within Cal/EPA, as well as the Department of Public Health, the Department of Food and Agriculture, the Office of Emergency Services, the Department of Fish and Wildlife, and the Department of Justice.

Several laws and regulations govern OEHHA's risk assessment work.

Reports, Notices, Documents

Overview of child-specific reference doses (chRDs), their derivation and use.  Links to relevant documents.

OEHHA announced a public workshop and comment period on pre-regulatory draft language regarding the hazard traits, environmental and toxicological end-points, and other relevant data that are to be included in the state’s Toxics Information Clearinghouse.

Rulemaking would specify the hazard traits, environmental and toxicological end-points, and other relevant data that are to be included in the state’s Toxics Information Clearinghouse.

Health Guidance Values specific to children developed by OEHHA

Release of the final technical document establishing a chRD for chlorpyrifos (1.0 x 10^-4 mg/kg-day) to be used in school site risk assessments