Record Display for the EPA National Library Catalog

RECORD NUMBER: 557 OF 799

OLS Field Name OLS Field Data
Main Title Modeling Study to Characterize Photochemical Atmospheric Reactions to the Los Angeles Basin Area.
Author Eschenroede, A. Q. ; Martine, J. R. ;
CORP Author General Research Corp., Santa Barbara, Calif.
Year Published 1969
Report Number GRC-CR-1-152; PHS-CPA-22-69-127;
Stock Number PB-189 074
Additional Subjects ( Air pollution ; Photochemistry) ; Reaction kinetics ; Diffusion ; Transport properties ; Hydrocarbons ; Nitrogen oxides ; Ozone ; Urban areas ; Exhaust gases ; Smog ; Photochemical reactions ; Peroxyacetyl nitrate ; Los Angeles(California) ; Nitrogen dioxide ; Automobile exhaust
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
NTIS  PB-189 074 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 74p
Abstract
Chemical kinetics and atmospheric transport processes are combined in this finite difference formulation to compute concentration histories for photochemical smog. The kinetics are expressed as a lumped parameter reaction mechanism which was derived from laboratory data in the literature. Diffusion coefficients, which depend on height and on time, come from atmospheric measurements. Inputs consist of source inventories for the Los Angeles basin and the solar irradiation curves for the appropriate days. Predicted time histories of reactive hydrocarbons, oxides of nitrogen and ozone are consistent with the variations observed at an air monitoring station. With refined descriptions of advection, the mathematical model will serve as a tool in planning legislation and guiding urban planning in the future. (Author)