||Development of Computer Modules of Particulate Processes for Regional Particulate Model.
Hudischewskyj, A. B. ;
Saxena, P. ;
Seigneur, C. ;
||Systems Applications, Inc., San Rafael, CA.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab.
Air pollution ;
Computerized simulation ;
EPA regional particulate model ;
Regional particulate models
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The development of an aerosol model for inclusion in the EPA Regional Particulate Model is described. Existing computer modules of particulate processes developed under EPA contract by Professors Brock, Seinfeld, and Whitby are compared to determine efficient and accurate methods of simulating particulate behavior. These methods are incorporated into an aerosol model, which is accurate and efficient in its treatment of the dynamics, thermodynamics, and chemical composition of atmospheric aerosols. Evaluation of the aerosol model is described using simulations for a regional environment and an urban plume. The model performs well under a variety of atmospheric and meteorological conditions. The results indicate the aerosol model is a useful tool for PM-10 and visibility studies.