The effect of water on gas–particle partitioning of secondary organic aerosol. Part I: α-pinene/ozone system

Cocker, David R., Clegg, Simon L., Flagan, Richard C. and Seinfeld, John H. (2001) The effect of water on gas–particle partitioning of secondary organic aerosol. Part I: α-pinene/ozone system. Atmospheric Environment, 35 (35). pp. 6049-6072.

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Abstract

The effect of relative humidity (RH) on aerosol formation by the semi-volatile oxidation products of the a-pinene/O3 system has been comprehensively studied. Experiments were performed in the presence of ammonium sulfate (aqueous, dry), ammonium bisulfate seed (aqueous, dry), and aqueous calcium chloride seed aerosols to ascertain their effect on the partitioning of the oxidation products. The yield of organic aerosol varies little with RH, and is not affected by the presence of dry inorganic salt aerosols. Aqueous salt aerosols reduce the yield of organic aerosol compared to that under seed-free or dry seed conditions. The degree of reduction is electrolyte dependent, with aqueous ammonium sulfate leading to the largest reduction and aqueous calcium chloride the smallest. Hygroscopic growth of the organic aerosol from

Item Type: Article
Faculty \ School: Faculty of Science > School of Environmental Sciences
Depositing User: Rosie Cullington
Date Deposited: 16 May 2011 14:50
Last Modified: 21 Apr 2020 20:58
URI: https://ueaeprints.uea.ac.uk/id/eprint/30619
DOI: 10.1016/S1352-2310(01)00404-6

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