Notice of Public Comment for Air Toxics "Hot Spots" Risk Assessment Guidelines Part II

The Office of Environmental Health Hazard Assessment (OEHHA) is soliciting public comments on the Scientific Review Panel review draft document, Air Toxics Hot Spots Program Risk Assessment Guidelines Part II: Technical Support Document for Determining Cancer Potency Factors. OEHHA is especially interested in comments on the sections of the document that have been substantially revised or added following public comments on the previous document version. Those sections include the Preface, Introduction, Unit Risk And Cancer Potency Values table, Regulatory Agency Risk Assessment Methodologies, Chemical-Specific Information Summaries for Hydrazine and Polychlorinated Biphenyls (PCBs), and Appendix G.

This draft document is part of a series of Risk Assessment Guidelines that are being developed by OEHHA for use in implementing the Air Toxics "Hot Spots" Program mandated by the Air Toxics Hot Spots Information and Assessment Act of 1987, as amended. The draft document will be distributed for public review on October 31, 1997 available on the OEHHA Home Page. The distribution of the document will commence a 30-day public review period that will end on December 1, 1997. Printed copies may be obtained for a fee from Copy World, 2154 University Ave., Berkeley, CA 94704 [phone (510) 849-9701, fax (510) 849-9704]. It is anticipated that initial review of this document by the Scientific Review Panel will occur in early December, 1997.

Inquiries concerning technical matters or availability of the document should be directed to Dr. John Budroe at (510) 540-3055. Written comments regarding the document may be submitted to:

OEHHA, Hot Spots Cancer TSD
Post Office Box 4010
Sacramento, CA 95812-4010

In order to be considered, comments must be received at OEHHA by 5 p.m. Monday, December 1, 1997.