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Request for information on Methyl Tertiary-Butyl Ether (MTBE), a chemical to be considered by OEHHA’s Science Advisory Board’s Carcinogen Identification Committee and Developmental and Reproductive Toxicant (DART) Identification Committee.

OEHHA solicited external scientific peer review and public comments on 25 draft technical support documents for Public Health Goals (PHGs) for the following chemicals: alachlor, antimony, benzo[a]pyrene, chlordane, copper, cyanide, dalapon, 1,2-dichlorobenzene, 1,4-dichlorobenzene, 2,4-dichlorophenoxyacetic acid, diethylhexylphthalate, dinoseb, endothall, ethylbenzene, fluoride, glyphosate, lead, nitrate and nitrite (3 PHG values), oxamyl, pentachlorophenol, picloram, trichlorofluoromethane, trichlorotrifluoroethane, uranium and xylenes.

OEHHA conducted two public workshops to solicit public comment and respond to questions on the draft document, Air Toxics Hot Spots Program Risk Assessment Guidelines Part III: Technical Support Document for the Determination of Noncancer Chronic Reference Exposure Levels.

Correction to the List of Chemicals Known to the State to Cause Cancer or Reproductive Toxicity: correction of CAS numbers for Di-n-propyl isocinchomeronate, (MGK Repellent 326), MeIQ(2-Amino-3,4-dimethylimidazo, [4,5-f]quinoline), and Polybrominated biphenyls

Amended agenda for the meeting of the Science Advisory Board's Developmental And Reproductive Toxicant (DART) Identification Committee.

OEHHA solicited public comments on the draft document, Air Toxics Hot Spots Program Risk Assessment Guidelines Part II: Technical Support Document for Determining Cancer Potency Factors.

OEHHA has provided a number of comments on the risk characterization methodology and conclusions on the draft RCD for Pentachlorophenol. These comments and our recommendations, as well as suggested clarifications, additions and corrections, are contained in this report.

Extension of Comment Period - Request for Information, 46 Chemicals Under Consideration for Possible Listing Via The Authoritative Bodies Mechanisms: Extension of Public Comment Period

Chemicals listed effective October 24, 1997 as known to the State to cause cancer or reproductive toxicity by the State's Qualified Experts: 2,4,5-trimethylaniline and its strong acid salts, 5-chloro-o-toluidine and its strong acid salts, and quinoline and its strong acid salts.

December 9, 1997 Meeting of the Science Advisory Board's Developmental and Reproductive Toxicant (DART) Identification Committee on Benzene