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Aerosol Dynamics in Atmospheric Aromatic Photooxidation

Stern, Jennifer E. and Flagan, Richard C. and Seinfeld, John H. (1989) Aerosol Dynamics in Atmospheric Aromatic Photooxidation. Aerosol Science and Technology, 10 (3). pp. 515-534. ISSN 0278-6826. doi:10.1080/02786828908959292.

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Aerosol formation and growth in aromatic hydrocarbon / NO_x systems was studied in a series of outdoor smog chamber experiments. Analysis of the aerosol size distributions in those experiments that exhibited steady condensational growth provides estimates for the gas-phase partial pressures of the condensing species. Saturation ratios during these growth periods are estimated by comparing these partial pressures with vapor pressures obtained from an analysis of nucleation (Stern et al., 1987), and are found to be in the range of 5 to 20. Modeling of the size–distribution dynamics during the experiments is carried out using the sectional model ESMAP (Warren and Seinfeld, 1985). The full size-distribution model predicts more nucleation than an integral model (Stern et al., 1987), because the polydisperse aerosol representation leads to a lower condensation rate than that predicted for a monodisperse aerosol.

Item Type:Article
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URLURL TypeDescription
Flagan, Richard C.0000-0001-5690-770X
Seinfeld, John H.0000-0003-1344-4068
Additional Information:© 1989 American Association for Aerosol Research. Received 18 November 1987; revised and accepted 18 March 1988. This work was supported by the Coordinating Research Council, project AP-6.
Funding AgencyGrant Number
Coordinating Research CouncilAP-6
Issue or Number:3
Record Number:CaltechAUTHORS:20150805-105713382
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:59212
Deposited By: Irina Meininger
Deposited On:09 Sep 2015 19:53
Last Modified:10 Nov 2021 22:16

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