From the OEHHA:

The Office of Environmental Health Hazard Assessment (OEHHA) within the California Environmental Protection Agency is adding anthraquinone (CAS No. 84-65-1) to the list of chemicals known to the state to cause cancer for purposes of the Safe Drinking Water and Toxic Enforcement Act of 1986 (Health and Safety Code section 25249.5 et seq., commonly known as Proposition 65). The listing of anthraquinone is effective September 28, 2007.

Anthraquinone (CAS No. 84-65-1) is being listed as a chemical known to the State of California to cause cancer. The listing of this chemical is based on formal identification by an authoritative body (i.e., the National Toxicology Program (NTP)), that the chemical causes cancer. The criteria used by OEHHA for the listing of chemicals under the “authoritative bodies” mechanism can be found in Title 22, Cal. Code of Regs., section 12306.

The reader is directed to the Notice of Intent to List Anthraquinone (CAS No. 84-65-1) published in the July 21, 2006 issue of the California Regulatory Notice Register (Register 2006, No. 29‑Z) for the documentation supporting OEHHA’s determination that the criteria for administrative listing have been satisfied for this chemical.

OEHHA analysis of dose-response data to establish the no significant risk level (NSRL) for anthraquinone (CAS No. 84-65-1) under Proposition 65 has not yet been conducted. The priority status for the development of such analysis will be announced in a future OEHHA Proposition 65 Status Report for Safe Harbor Levels, available at http://www.oehha.ca.gov/prop65.html.

Chemical: Anthraquinone

CAS No.:84-65-1

Toxicological Endpoint: cancer

Listing Mechanism(1): AB

(1) Listing mechanism: AB – “authoritative bodies” mechanism (Title 22, Cal. Code of Regs. section 12306)

Notice of Intent to List Chemicals
Additional Extension of Public Comment Period: anthraquinone

The Safe Drinking Water and Toxic Enforcement Act of 1986 (Proposition 65) requires the Governor to publish, and update at least annually, a list of chemicals known to the State to cause cancer or reproductive toxicity. The Office of Environmental Health Hazard Assessment (OEHHA) is the lead agency for the implementation of Proposition 65.

On October 13, 2006, OEHHA published a notice in the California Regulatory Notice Register (Register 06, No. 41-Z) announcing the second extension of the public comment period related to OEHHA’s intent to list anthraquinone under Proposition 65 as a chemical known to the state to cause cancer in accordance with the regulatory criteria in Section 12306 of Title 22 of the California Code of Regulations. The October 13 notice initiated a second 60 day public comment period which would have closed on December 19, 2006. OEHHA has received a another request from an interested party seeking further extension of the comment period to allow for the submission of information from the National Institute of Environmental Health Sciences that may be pertinent to the listing consideration of anthraquinone. OEHHA hereby extends the public comment period for anthraquinone for 60 days to 5 p.m., Tuesday, February 20, 2007.

Written comments provided in triplicate, along with supporting information, may be submitted to:
Ms. Cynthia Oshita
Office of Environmental Health Hazard Assessment
Street Address: 1001 I Street
Sacramento, California 95814
Mailing Address: P.O. Box 4010
Sacramento, California 95812-4010
Fax No.: (916) 323-8803
Telephone: (916) 445-6900

Comments may also be delivered in person or by courier to the above address. It is requested, but not required, that written comments and supporting documentation be transmitted via email addressed to: coshita@oehha.ca.gov. In order to be considered, comments must be received at OEHHA by 5:00 p.m. on Tuesday, February 20, 2007.

To view the complete notice, published on California’s Office of Environmental Health Hazard Assessment website, please visit: Proposition 65 - Notices of Intent to List