Based on the US Environmental Protection Agency’s estimate of the human cancer potency of PCBs of 2.0 (mg/kg-day)‑1, the OEHHA has calculated a no significant risk level (NSRL, defined as the daily level posing a 10‑5 lifetime risk of cancer) for PCBs in food of 0.35 µg/day for a 70‑kg person. A maximum allowable dose level (MADL) of 2.3 µg/day for a 58-kg woman was adopted for PCBs (in food), based on developmental toxicity in a primate study.

Office of Environmental Health Hazard Assessment (OEHHA) of the California Environmental Protection Agency (Cal/EPA).
Proposition 65 Implementation Program. Specific regulatory levels posing no significant risk: polychlorinated biphenyls.
13 April 2012

http://www.oehha.ca.gov/prop65/law/pdf_zip/041312PCB_NSRL.pdf

http://www.oehha.ca.gov/prop65/law/pdf_zip/041312PCB_ISOR.pdf

The above item was taken from the May 2012 issue of Toxicology and Regulatory News which is sent automatically to members of bibra (click here for more details).

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