Record Display for the EPA National Library Catalog


Main Title Comparison of Emission Models with On-Road Heavy-Duty Diesel Modal Data.
Author Brown, J. E. ; Harris, D. B. ; King, F. G. ;
CORP Author Acurex Environmental Corp., Research Triangle Park, NC.;Environmental Protection Agency, Research Triangle Park, NC. Air Pollution Prevention and Control Div.
Publisher 1997
Year Published 1997
Report Number EPA-68-D4-0005; EPA/600/A-97/093;
Stock Number PB98-116353
Additional Subjects Heavy duty vehicles ; Diesel engine exhaust ; Emission factors ; Mathematical models ; Exhaust emissions ; Particulates ; Carbon monoxide ; Ozone ; Precursors ; Vehicle air pollution ; Mobile pollution sources ; Air pollutant sources ; Engine dynamometers ; Comparisons ; Computerized simulation ; Emission inventories ; MOBILE5b computer model
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
NTIS  PB98-116353 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 22p
The paper discusses a validation program aimed at confirming or modifying conversion factors used in EPA's MOBILE model, using actual on-road-measured emissions data. For the benefit of the emissions inventory community and regional air quality modelers, EPA's Office of Mobile Sources has produced a model, the latest version of which is called MOBILE5b, that predicts mobile source emission factors for ozone precursors and carbon monoxide (particulate exhaust emission factors are estimated with a similar, but separate, model, PART5). This model was developed using information on motor vehicle fleet characteristics, usage patterns, and the regulatory and economic forces that effect them. The final outputs from the MOBILE model are composite emission factors, usually expressed as grams/vehicle-mile of travel, in which all of these factors have been weighted together to produce average emission factors for each pollutant and each vehicle class and fuel type for a specific calendar year.