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OEHHA released its proposed revised Reference Exposure Levels for 1,3-butadiene for public comment, and held supporting workshops.
| Program: Air
Extension of comment period for Maximum Allowable Dose Levels for methanol through June 25, 2012.
| Program: Proposition 65
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).
| Program: Proposition 65
Extension of the public comment period for the proposed Maximum Allowable Dose Levels (MADLs) for methanol.
| Program: Proposition 65
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