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Notice of Intent to List: 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 for listing as causing cancer under the authoritative bodies mechanism
Apr 9, 2004, Program: Proposition 65
Request for information on progesterone for consideration by the OEHHA Science Advisory Board’s Developmental and Reproductive Toxicant (DART) Identification Committee.
Apr 9, 2004, Program: Proposition 65
This document is one of a series of technical resources and tools prepared by the Ecotoxicology Unit (OEHHA) as part of our goal of advancing the science and practice of ecological risk assessment.
Apr 1, 2004, Program: Ecotoxicology
OEHHA released a revised draft with unit risk value for naphthalene, which was ammeneded in response to comments received during the comment period.
Mar 18, 2004, Program: Air
This 2004 draft report is required by the California Land Environmental Restoration and Reuse Act (Escutia, Chapter 764, Statues of 2001) as part of the effort to develop soil screening numbers for a specific set of contaminants.
Mar 12, 2004, Program: Risk Assessment
The Public Health Goal for perchlorate was finalized and the technical support document was made available.
Mar 12, 2004, Program: Water
Availability of final data summaries and priorities for chemicals with respect to their evaluation by the OEHHA Science Advisory Board’s Carcinogen Identification Committee.
Mar 12, 2004, Program: Proposition 65
OEHHA announced that the public health goal (PHG) for perchlorate in drinking water was identified as 6 ppb (parts per billion).
Mar 12, 2004, Program: Water
OEHHA has provided a number of comments on the risk characterization methodology and conclusions on the draft RCD for the Active Ingredient Tetrahydro-5,5-dimethyl-2 (1H)-pyrimidinone {3[4-(trifluoromethyl) phenyl]-1-[2-(4-trifluoromethyl) phenyl] ethenyl]-2-propenylidene} hydrazone (hydramethylnon). These comments and our recommendations, as well as suggested clarifications, additions and corrections, are contained in the attachment.
Mar 12, 2004, Program: Pesticides
Request for information on chemicals to be considered by the Carcinogen Identification Committee.
Mar 12, 2004, Program: Proposition 65