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Cyanotoxin concentrations at which no adverse effects are expected to occur. The
risk assessment includes two parts: toxicity assessment and exposure assessment.
| Program: Risk Assessment
A list of peer reviewed publications by OEHHA scientists from January 1987 - April 2012
| Program: Public Information
A No Significant Risk Level for imazalil of 11 micrograms per day was adopted effective April 25, 2012.
| Program: Proposition 65
Proposal to adopt an updated No Significant Risk Level (NSRL) for polychlorinated biphenyls (PCBs) of 0.35 micrograms per day. OEHHA also proposes to adopt a Maximum Allowable Dose Level for PCBs of 2.3 ug/day.
| Program: Proposition 65
The regulation adopts a NSRL of 41 ug/day for chlorothalonil.
| Program: Proposition 65
Proposal to clarify that the Science Advisory Board Committees provides peer review for the proposed No Significant Risk Levels for carcinogens and proposed Maximum Allowable Dose Levels for reproductive toxicants that are developed by OEHHA
| Program: Proposition 65
OEHHA announced its revised Reference Exposure Levels for nickel and nickel compounds following its approval by the Scientific Review Panel.
| Program: Air
2nd extension of public comment period on the notice of intent to list benzophenone, coconut oil diethanolamine condensate (cocamide diethanolamine), diethanolamine and 2-methylimidazole as known to the state to cause cancer.
| Program: Proposition 65
Chemical listed effective March 16, 2012 as known to the State of California to cause reproductive toxicity: Methanol
| Program: Proposition 65
Proposal to establish a Maximum Allowable Dose Levels for methanol of 47,000 micrograms per day for inhalation and 23,000 micrograms per day for ingestion. Concurrently, an interpretive guideline for methanol resulting from pectin that occurs naturally in fruits and vegetables is being published.
| Program: Proposition 65