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Following endorsement by the Scientific Review Panel, OEHHA adopted Chronic Reference Exposure Levels for 16 chemicals. This was the 2nd wave included with the Air Toxics Hot Spots Program Risk Assessment Guidelines Part III: The Determination of Chronic Reference Exposure Levels for Airborne Toxicants.
May 2, 2000, Program: Air
OEHHA has provided a number of comments on the risk characterization methodology and conclusions on the draft RCD for Deltamethrin. These comments and our recommendations, as well as suggested clarifications, additions and corrections, are contained in the attachment.
Apr 25, 2000, Program: Pesticides
OEHHA recommends a Notification Level of 170 ppb (ug/L) for naphthalene in drinking water.
Apr 20, 2000, Program: Water
Dimethyl chlorothiophosphate, a candidate for listing via the Authoritative Bodies Mechanism was found not to meet the Scientific Criteria (22 CCR 12306(g)) for authoritative bodies listing as causing reproductive toxicity under Proposition 65
Apr 14, 2000, Program: Proposition 65
Notice of Intent to List chemical as causing cancer under the authoritative bodies mechanism: o-phenylphenol
Apr 14, 2000, Program: Proposition 65
OEHHA developed health values for the inhalation pathway for the Toxic Air Contaminant (TAC), methyl tertiary-butyl ether (MTBE).
Mar 31, 2000, Program: Air
Notice of Intent to List chemicals as causing cancer under the authoritative bodies mechanism: Chloroprene, Cobalt sulfate heptahydrate, Fenoxycarb
Mar 17, 2000, Program: Proposition 65
Comment Period - Notice of Intent to List Chemicals: Chloroprene, Cobalt sulfate heptahydrate, Fenoxycarb
Mar 17, 2000, Program: Proposition 65
The Office of Environmental Health Hazard Assessment (OEHHA) is adding methyl chloride to the list of chemicals known to the State to cause reproductive toxicity, effective March 10, 2000.
Mar 10, 2000, Program: Proposition 65