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The completion of this Public Health Goal is a first step in California's efforts to address the presence of perchlorate in our state's drinking water supplies.
| Program: Water
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
| Program: Proposition 65
Request for information on progesterone for consideration by the OEHHA Science Advisory Board’s Developmental and Reproductive Toxicant (DART) Identification Committee.
| 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.
| 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.
| Program: Air
In response to public comments, OEHHA released a revised version of its draft Chronic Reference Exposure Levels for silica (crystalline, respirable).
| Program: Air
The Public Health Goal for perchlorate was finalized and the technical support document was made available.
| Program: Water
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.
| Program: Risk Assessment
OEHHA has provided a number of comments on the risk characterization and the exposure assessment methodology and conclusions on the draft addendum to RCD and EAD for Methidathion.
| Program: Pesticides
OEHHA announced availability of this draft report for review and comment.
| Program: Risk Assessment