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4-Methylimidazole (4-MEI) was listed under Proposition 65 list because the National Toxicology Program found 4­MEI caused lung tumors in laboratory animals.

Extension of comment period on the notice of intent to ist benzophenone, coconut oil diethanolamine condensate (cocamide diethanolamine), diethanolamine and 2-methylimidazole as known to the state to cause cancer.

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

Addition of methyl isopropyl ketone to the list of chemicals known to the State to cause reproductive toxicity.

Fish advisory for Lower Mokelumne River.

Guidelines for safe consumption of Striped Bass, White Sturgeon, and other fish advisories. This  advisory and guidelines balance the health benefits of eating wild-caught fish against the health risks from exposure to contaminants in them.

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.

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)