Record Display for the EPA National Library Catalog


Main Title Source Reconciliation of Ambient Volatile Organic Compounds Measured in the Atlanta 1990 Summer Study: The Mobile Source Component.
Author Lewis, C. W. ; Conner, T. L. ;
CORP Author Environmental Protection Agency, Research Triangle Park, NC. Atmospheric Research and Exposure Assessment Lab.
Publisher 1991
Year Published 1991
Report Number EPA/600/D-91/263;
Stock Number PB92-124130
Additional Subjects Volatile organic compounds ; Air pollution detection ; Mobile pollutant sources ; Exhaust emissions ; Air pollution monitoring ; Ozone ; Mass balance ; Mathematical models ; Concentration(Composition) ; Gas chromatography ; Non-methane hydrocarbons ; Tables(Data) ; Chemical analysis ; Atlanta(Georgia)
Library Call Number Additional Info Location Last
NTIS  PB92-124130 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 11p
A field study of precursors to the formation of ozone was conducted in Atlanta during summer, 1990, in which average concentrations of C2 - C10 volatile organic compounds (VOCs) were measured hourly at six sites by an automated gas chromatographic system. If the source profiles of the prominent VOC sources are known, chemical mass balance (CMB) receptor modeling can be applied to obtain the contribution of each source to the measured ambient concentration of total non-methane organic compounds (NMOC) in each sampling period. Dispersion information can then be used in a subsequent step to obtain VOC source emission rate estimates, which are independent of emissions inventories derived by traditional methods. Results from the first step of the procedure are given, in which a subset of ambient data from the Georgia Tech site was analyzed by CMB to extract the motor vehicle exhaust contribution to ambient NMOC. Future implementation of the second step is also discussed.