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Atmospheric equilibrium model of sulfate and nitrate aerosols

Bassett, Mark and Seinfeld, John H. (1983) Atmospheric equilibrium model of sulfate and nitrate aerosols. Atmospheric Environment, 17 (11). pp. 2237-2252. ISSN 1352-2310. doi:10.1016/0004-6981(83)90221-4.

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Given local rates of production of gas-phase sulfate and nitrate, ammonia concentration, relative humidity and temperature, a model is presented that enables calculation of the quantity of sulfate/nitrate/ammonium/water aerosol, its precise chemical composition and physical state. The model is based on a complete thermodynamic chemical and phase equilibrium calculation for the sulfate/nitrate/ammonium system. Detailed simulations of sulfate/nitrate/ammonium aerosol evolution are presented, and recent ambient data from Tanner are interpreted. Some new results on temperature variation of activity coefficients are presented in the Appendix.

Item Type:Article
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URLURL TypeDescription
Seinfeld, John H.0000-0003-1344-4068
Additional Information:© 1983 Pergamon Press Ltd. First received 23 December 1982 and in final form 27 April 1983. This work was supported by U.S. Environmental Protection Agency grant R-806844.
Group:Environmental Quality Laboratory
Funding AgencyGrant Number
Environmental Protection Agency (EPA)R-806844
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Environmental Quality LaboratoryA-150
Issue or Number:11
Record Number:CaltechAUTHORS:20140917-162227008
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Official Citation:Bassett, M., & Seinfeld, J. H. (1983). Atmospheric equilibrium model of sulfate and nitrate aerosols. Atmospheric Environment (1967), 17(11), 2237-2252. doi:
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49799
Deposited On:18 Sep 2014 21:53
Last Modified:10 Nov 2021 18:48

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