Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Droplet Phase (Heterogeneous) and Gas Phase (Homogeneous) Contributions to Secondary Ambient Aerosol Formation as Functions of Relative Humidity.
Author McMurry, P. H. ; Wilson, J. C. ;
CORP Author Minnesota Univ., Minneapolis. Dept. of Mechanical Engineering.;Environmental Sciences Research Lab., Research Triangle Park, NC.
Year Published 1983
Report Number EPA-R-806801; EPA-600/J-83-227;
Stock Number PB84-226554
Additional Subjects Aerosols ; Humidity ; Vapor phases ; Liquid phases ; Air pollution ; Sulfates ; Electric power plants ; Urban areas ; Sulfur dioxide ; Nitrogen oxides ; Combustion products ; Chemical reactions ; Plumes ; Reaction kinetics ; Ohio ; Industrial wastes ; Reprints ; Columbus(Ohio)
Library Call Number Additional Info Location Last
NTIS  PB84-226554 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. NTIS 06/23/1988
Collation 10p
In previous publications (McMurry and Wilson, 1982; McMurry et al., 1981), techniques for determining the relative contributions of gas phase and liquid phase reactions to secondary ambient aerosol formation have been described. In this paper these methods are applied to more recent data acquired during the 1980 Environmental Protection Agency PEPE-NEROS study near Columbus, Ohio. It is shown that liquid phase reactions tend to be the most important mechanism of sulfate aerosol formation for relative humidities greater than 75%, while gas phase reactions are predominant at lower humidities.