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Adoption of Chronic Reference Exposure Levels for Silica (Crystalline, Respirable)

February 10, 2005

Air

Notice of Public Comment/Workshops for Draft Chronic Toxicity Summary for Silica (Crystalline, Respirable)

OEHHA released a draft Chronic Toxicity Summary for Silica (Crystalline, Respirable) for public comment, and held supporting workshops.

Notice of Adoption of Revised Reference Exposure Levels for Nickel and Nickel Compounds

OEHHA announced its revised Reference Exposure Levels for nickel and nickel compounds following its approval by the Scientific Review Panel.

Notice of Public Comment on Proposed Revised Reference Exposure Levels for Nickel and Nickel Compounds

OEHHA released for public comment its proposed revision to the Reference Exposure Levels for nickel and nickel compounds.

Notice of Adoption of Reference Exposure Levels for Caprolactam

OEHHA adopted Reference Exposure Levels for Caprolactam following approval by the Scientific Review Panel in 2011.

Proposed Revised Reference Exposure Levels for Caprolactam and Nickel

April 1, 2011

Air

Notice of Public Workshops on Proposed Reference Exposure Levels for Methylene Diphenyl Diisocyanate, Toluene Diisocyanate, and Caprolactam

OEHHA announced public workshops for RELs for MDI, TDI, and caprolactam.

Notice of Public Comment for Proposed Reference Exposure Levels for Caprolactam

OEHHA released for public comment its proposed Caprolactam RELs.

Study Finds Long-term Exposure to Ultrafine Particle Air Pollution Associated With Death From Heart Disease

February 25, 2015

Air

Adoption of Revised Toxicity Equivalency Factors (TEF WHO-97) for PCDDs, PCDFs, and Dioxin-Like PCBs

August 29, 2003

Air

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