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Mathematical modeling of the formation and transport of ammonium nitrate aerosol

Russell, Armistead G. and McRae, Gregory J. and Cass, Glen R. (1983) Mathematical modeling of the formation and transport of ammonium nitrate aerosol. Atmospheric Environment, 17 (5). pp. 949-964. ISSN 1352-2310 . http://resolver.caltech.edu/CaltechAUTHORS:20140626-124910584

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Abstract

A mathematical model describing the transport and formation of aerosol NH_4NO_3 is presented. Based on a vertically resolved Lagrangian trajectory formulation incorporating gas phase kinetics, NH_4NO_3 concentrations are computed at thermodynamic equilibrium with precursor HNO_3 vapor and NH_3 concentrations. Sensitivity analysis shows that NH_4NO_3 concentration predictions are strongly influenced by ambient temperature and NH_3 levels. A brief description of the NH_3 emissions inventory used in this study is included to indicate the important sources. The model was tested by comparison to ambient NH_3, NH_4+ and NO_3− concentrations measured at El Monte, California during June 1974. Model results compare favorably with the ambient measurements and are used to explain trends in those measurements. An early morning nitrate peak develops as HNO_3 produced soon after sunrise reacts with NH_3 accumulated overnight. A second peak in nitrate concentration is predicted and observed at El Monte later in the day. Potential applications of this model to control strategy decisions and to study the fate of NO_x are discussed.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1016/0004-6981(83)90247-0DOIArticle
http://www.sciencedirect.com/science/article/pii/0004698183902470PublisherArticle
Additional Information:© 1983 Pergamon Press Ltd. First received 19 April 1982; and in revised form 11 August 1982. This work was supported by the California Air Resources Board under contract No. A7-169- 30. The authors wish to acknowledge the assistance of Arthur Stelson and John Seinfeld in formulating the equilibrium model and William Goodin with help in supplying the necessary computational resources.
Group:Environmental Quality Laboratory
Funders:
Funding AgencyGrant Number
California Air Resources BoardA7-169-30
Other Numbering System:
Other Numbering System NameOther Numbering System ID
Environmental Quality LaboratoryA-111
Record Number:CaltechAUTHORS:20140626-124910584
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20140626-124910584
Official Citation:Armistead G. Russell, Gregory J. McRae, Glen R. Cass, Mathematical modeling of the formation and transport of ammonium nitrate aerosol, Atmospheric Environment (1967), Volume 17, Issue 5, 1983, Pages 949-964, ISSN 0004-6981, http://dx.doi.org/10.1016/0004-6981(83)90247-0. (http://www.sciencedirect.com/science/article/pii/0004698183902470)
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:46531
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:01 Jul 2014 19:37
Last Modified:01 Jul 2014 19:37

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