Latest News

Chemicals listed effective July 9, 2004 as known to the state of California to cause cancer: “aristolochic acids” and “herbal remedies containing plant species of the genus Aristolochia".

OEHHA announces a public comment period for the draft Public Health Goals for radium-226 and -228, strontium-90, and tritium in drinking water.

The Office of Environmental Health Hazard Assessment proposes to establish specific regulatory levels posing no significant risk for 1,2-dichloropropane and naphthalene.  OEHHA also proposes to establish specific regulatory levels for 1,2-dibromo-3-chloropropane, disodium cyanodithioimidocarbonate, ethyl dipropylthiocarbamate, ethylene glycol monomethyl ether, ethylene glycol monomethyl ether acetate, methyl bromide as a structural fumigant, sodium dimethyldithiocarbamate and thiophanate-methy.

Request for relevant information on 2,4-Hexadienal (89% trans, trans isomer;11% cis, trans isomer) for possible listing via the Authoritative Bodies mechanism.

Staff of the Air Resources Board (ARB) and Office of Environmental Health Hazard Assessment (OEHHA) reviewed the scientific literature regarding the health effects of ozone (O3) and considered revisions to the Ozone Ambient Air Quality Standard based on the literature review.  Proposed recommendations are presented.

Final Statement of Reasons for specific regulatory levels posing no significant risk for eight chemicals listed as known to the State to cause cancer (benz[a]anthracene, benzene, benzo[b]fluoranthene, benzo[j]fluoranthene, bromoform, chrysene, 7H-dibenzo[c,g]carbazole, dibenzo[a,h]pyrene, dibenzo[a,i]pyrene, and 5-methylchrysene).

Chemicals Listed Effective June 11, 2004 as Known to the State of California to Cause Cancer: 3,3'-dimethoxybenzidine-based dyes metabolized to 3,3'-dimethoxybenzidine, 3,3'-dimethylbenzidine-based dyes metabolized to 3,3'-dimethylbenzidine, ethylbenzene, propylene glycol mono-t-butyl ether, and thiouracil

Notice of proposed rulemaking. Amendment to Title 22, Section 12901, Methods of Detection, under the Safe Drinking Water and Toxic Enforcement Act of 1986.

OEHHA announces a public comment period and workshop for draft Public Health Goals for cis/trans-1,2-dichloroethylene, 1,1,1-trichloroethane, and 1,1,2-trichloroethane.

Chemicals under consideration for possible listing as known to cause reproductive toxicity via the Authoritative Bodies mechanisms: Request for relevant information on five chemicals.