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Second-generation inorganic aerosol model

Wexler, Anthony S. and Seinfeld, John H. (1991) Second-generation inorganic aerosol model. Atmospheric Environment Part A-General Topics, 25 (12). pp. 2731-2748. ISSN 0960-1686. doi:10.1016/0960-1686(91)90203-j.

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Accurate prediction of the size distribution of the inorganic components of atmospheric aerosols must account for both therthermodynamic properties of the aerosol particles and transport between the gas and aerosol phases. For volatile inorganic species the transport rate is governed by the particle surface partial pressures which, in turn, is determined by the phase state and composition of the aerosol. We develop a model of the temporal composition of atmospheric aerosol particles based on their transport and thermodynamic properties. Included in the model is an improved theory of the temperature and composition dependence of deliquescence. Components of the model are tested against measurements of activity coefficients in single- and multicomponent aqueous solutions and general agreement is found. Aerosol water predictions are significantly higher under conditions of low relative humidity due to the improved theory of deliquescence.

Item Type:Article
Related URLs:
URLURL TypeDescription
Wexler, Anthony S.0000-0003-1565-814X
Seinfeld, John H.0000-0003-1344-4068
Additional Information:This work was supported by the State of California Air Resources Board Agreement A932-054.
Funding AgencyGrant Number
California Air Resources BoardA932-054
Issue or Number:12
Record Number:CaltechAUTHORS:20230305-96242900.2
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:119650
Deposited By: Tony Diaz
Deposited On:06 Mar 2023 18:24
Last Modified:06 Mar 2023 18:24

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