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Public health goal establishes a long-term objective for the reduction of arsenic in California's drinking water. Arsenic is one of the most toxic substances commonly found in drinking water, and it occurs naturally in many parts of the world, including California.

Criteria for Listing Chemicals for Listing "As Known to the State to Cause Reproductive Toxicity"  (November, 1993)

Information on health risks from radionuclides in drinking water.

Chemical listed effective April 16, 2004 as known to the state of California to cause reproductive toxicity: 1,3-butadiene

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.

Request for information on progesterone for consideration by the OEHHA Science Advisory Board’s Developmental and Reproductive Toxicant (DART) Identification Committee.

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

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.

OEHHA released a revised draft with unit risk value for naphthalene, which was ammeneded in response to comments received during the comment period.  

In response to public comments, OEHHA released a revised version of its draft Chronic Reference Exposure Levels for silica (crystalline, respirable).