Latest News
Notice that the Office of Environmental Health Hazard Assessment proposes to establish Maximum Allowable Dose Levels for methanol of 47,000 micrograms per day for inhalation and 23,000 micrograms per day for ingestion by amending Section 25805(b).
Extension of the public comment period for the proposed Maximum Allowable Dose Levels (MADLs) for methanol.
Cyanotoxin concentrations at which no adverse effects are expected to occur. The
risk assessment includes two parts: toxicity assessment and exposure assessment.
A list of peer reviewed publications by OEHHA scientists from January 1987 - April 2012
A No Significant Risk Level for imazalil of 11 micrograms per day was adopted effective April 25, 2012.
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.
The regulation adopts a NSRL of 41 ug/day for chlorothalonil.
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
OEHHA announced its revised Reference Exposure Levels for nickel and nickel compounds following its approval by the Scientific Review Panel.
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.