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Air Toxicology and Epidemiology

Availability of Draft Document - Atmospheric Chemistry of Gasoline-Related Emissions: Formation of Pollutants of Potential Concern
[09/09/05]

OEHHA announces the availability of the draft document “Atmospheric Chemistry of Gasoline-Related Emissions: Formation of Pollutants of Potential Concern”. This document will be reviewed by the Scientific Review Panel of the Air Resources Board (ARB).

Gasoline powered vehicles emit a variety of volatile organic pollutants, including alkanes, alkenes, aromatic hydrocarbons and oxygenates. The pollutants that are emitted at the tailpipe and that evaporate from the fuel system are not necessarily the same as those to which the population is exposed, due to the atmospheric transformation processes that these pollutants undergo. The primary objective of this research effort was to identify atmospheric products associated with gasoline combustion and evaporative emissions that may pose a toxicological concern or may be present at relatively high levels in the atmosphere. A secondary objective was to assess the atmospheric lifetimes of gasoline-related pollutants, as constituents with longer lifetimes would be of greater exposure concern. This research effort focused on California Phase 2 Reformulated Gasoline.

OEHHA will accept written comments related to this document between September 8, 2005 and October 11, 2005. Submit written comments via mail, fax, courier or hand-delivery, no later than 5:00 p.m. on October 11, 2005, to:

Maria Aguilar
Office of Environmental Health Hazard Assessment
Reproductive and Cancer Hazard Assessment Branch
1515 Clay Street, 16th floor
Oakland, CA 94612

Written comments may also be transmitted via email to: maguilar@oehha.ca.gov
Technical inquiries regarding this document may be sent to Sara Hoover (shoover@oehha.ca.gov) or Martha Sandy (msandy@oehha.ca.gov).
Information about dates and agenda for meetings of the Scientific Review Panel can be obtained from the ARB web page (http://www.arb.ca.gov/srp/srp.htm).

Follow this link to download a copy of the document, Draft Document - Atmospheric Chemistry of Gasoline-Related Emissions: Formation of Pollutants of Potential Concern as a pdf file