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Adoption of Reference Exposure Levels (RELs) for toluene diisocyanate (TDI) and methylene diphenyl diisocyanate (MDI) for use in the Air Toxics Hot Spots program. The REL values for TDI are: Acute: 2 µg/m3, 8-Hour: 0.015 µg/m3, Chronic: 0.008.  The REL values for MDI are: Acute: 12 µg/m3, 8-Hour: 0.16 µg/m3, Chronic: 0.08 µg/m3.

Notice of changes to the proposed regulation.  This proposed regulation was originally the subject of a Notice of Proposed Rulemaking published on November 27, 2015.  After consideration of comments received, OEHHA has modified the text of the proposed regulation.

Comment period on the modification of text of proposed regulation.  This proposed regulation was originally the subject of a Notice of Proposed Rulemaking published on November 27, 2015.  After consideration of comments received, OEHHA has modified the text of the proposed regulation.  This comment period closes April 11, 2016.  

OEHHA participates in DPR’s process for human health risk management by providing advice and recommendations to DPR.

Various roles that OEHHA as in a advisory capacity. 

OEHHA participates in DPR’s process for human health risk assessment by conducting peer reviews of DPR's risk and exposure assessments, and preparing findings on the health effects of potential toxic air contaminants.

Closure of the recreational Dungeness crab fishery south of the Mendocino/Sonoma county line has been lifted. Opening of the commercial Dungeness crab fishery is set for March 26 in the same region.

Comment period on a proposed Proposition 65 Maximum Allowable Dose Level (MADL) for bisphenol A (BPA) (dermal exposure from solid materials) of 3 micrograms per day.  Comment period closes on May 16, 2016.

Notice of proposed establishment of a Proposition 65 Maximum Allowable Dose Level (MADL) for bisphenol A (BPA) (dermal exposure from solid materials) of 3 micrograms per day.

Workshop on the "Draft Inhalation Cancer Unit Risk Factor for Perchloroethylene" in Sacramento, CA.