Record Display for the EPA National Library Catalog


OLS Field Name OLS Field Data
Main Title Modeling of Chemical Transformations of SO(x) and NO(x) in the Polluted Atmosphere. An Overview of Approaches and Current Status.
Author Gillani, N. V. ;
CORP Author Washington Univ., St. Louis, MO.;Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Sciences Research Lab.
Year Published 1985
Report Number EPA-R-809713; EPA/600/D-85/053;
Stock Number PB85-173169
Additional Subjects Sulfur oxides ; Nitrogen oxides ; Mathematical models ; Air pollution ; Reaction kinetics ; Field tests ; Experimental design ; Assessments ; Transport properties ;
Library Call Number Additional Info Location Last
NTIS  PB85-173169 Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy. 06/21/1988
Collation 38p
Two principal approaches are identified in the modeling of chemical transformations of SOx and NOx in the polluted atmosphere. The fundamental approach involves simulation of the detailed chemical kinetics of the SOx-NOx-HC system; in the empirical approach, relatively simple parameterizations of the bulk rates of conversion of precursors to secondary products are sought in terms of environmental factors which, based on laboratory and field measurements appear to control these rates. In this paper, the principal features of both approaches are described in the form of an overview, with examples of the main results. An assessment is made of the current state of development of both methods, particularly within the context of their applicability in regional transport-transformation models. A brief overview is also presented of the controversial question of linearity of the transformation module with respect to the precursor emissions.