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Advisory based on mercury

For information relating to biotoxins from harmful algal blooms (HABs) that may be found in California water bodies, see below.

Fish advisory for the Lower American River.

Fish advisory for American Shad, Chinook (king) Salmon, Steelhead Trout, Striped Bass, and White Sturgeon caught in California rivers, estuaries, and coastal ocean waters.

Fish advisory for Lower Mokelumne River.

Request for relevant information on chemicals being considered for listing by the Authoritative Bodies mechanism: Isopyrazam, Beta-Myrcene, Pulegone, and 3,3',4,4'-Tetrachloroazobenzene.

Establishment of NSRL of 29 ug/day for 4-Methylimidazole (4-MEI)

Notice of a change to a proposed No Significant Risk Level (NSRL) for chlorothalonil from 27 ug/day to 41 ug/day.

OEHHA has been designated as the lead entity within CalEPA to coordinate and manage Children's Environmental Health.  Memo from Matthew Rodriquez to George Alexeeff.

This action amends existing procedures governing service of a 60-day notice under Proposition 65 by establishing an alternative procedure for serving notices on the Attorney General via electronic mail.

Notice of Amendment - Title 27, California Code of Regulations Amendment of Section 25703(a)(6): Quantitative Risk Assessment. The amendment modifies the calculation used to convert estimates of animal cancer potency to estimates of human cancer potency, which is used to calculate no significant risk levels for carcinogens listed under Proposition 65.