Please note: For Hot Spots risk assessments, please use the Hot Spots acute and chronic RELs and unit risk factors. These can be found under the Air button, and toxic air contaminant topics.
For questions about the database please contact Laurie Monserrat
OEHHA is one of five agencies under the umbrella of the California Environmental Protection Agency (Cal/EPA).
Air Resources Board | Department of Pesticide Regulation | Department of Toxic Substances Control
Office of Environmental Health Hazard Assessment | State Water Resources Control Board
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