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Published December 1, 2000 | public
Journal Article

Aerosol Formation in the Cyclohexene-Ozone System

Abstract

Atmospheric oxidation of certain volatile organic compounds can lead to products of sufficiently low vapor pressure that the products partition into the aerosol phase, producing what is termed secondary organic aerosol. Cyclohexene has long been known to produce aerosol upon photooxidation. In this study, we obtain molecular product information especially for those species that partition between the gas and particle phases. Compounds identified in the aerosol phase include hydroxyglutaric acid, adipic acid, and hydroxyadipic acid. In accord with previous studies, pentanal is found to be the predominant identified gas-phase products, at a molar yield of 17%. Possible explanations for the presence of relatively high vapor pressure compounds in the aerosol phase are advanced.

Additional Information

© 2000 American Chemical Society. Received for review April 14, 2000. Revised manuscript received August 29, 2000. Accepted August 29, 2000. This work was supported by the U.S. Environmental Protection Agency Center on Airborne Organics and the Swiss National Science Foundation.

Additional details

Created:
August 19, 2023
Modified:
October 18, 2023