Record Display for the EPA National Library Catalog


Main Title Exhaust emission factors for nonroad engine modeling--spark ignition.
CORP Author Environmental Protection Agency, Washington, DC. Office of Air and Radiation.
Publisher Assessment and Modeling Division, Office of Transportation and Air Quality, U.S. Environmental Protection Agency,
Year Published 2002
Report Number EPA420-P-02-015
Stock Number PB2006-111465
OCLC Number 70261669
Subjects Spark ignition engines--Exhaust gas--United States ; Vehicles--Motors--Exhaust gas--United States
Additional Subjects Spark ignition engines ; Exhaust emissions ; Estimates ; Engines ; Hydrocarbons ; Equipment ; US EPA ; Air pollution ; Modeling ;
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
ELCD  EPA 420-P-02-015 PDF file on file NVFEL Library/Ann Arbor, MI 09/30/2015
NTIS  PB2006-111465 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 44 unnumbered pages : digital, PDF file
The U.S. EPAs NONROAD model computes county-level emission inventories for nonroad engines. These calculations rely on emission factors -- estimates of the amount of pollution emitted by a particular type of equipment during a unit of use. Typically emission factors for nonroad sources are reported in grams per horsepower-hour (g/hp-hr), but they also may be reported in grams per mile (g/mile), grams per hour, grams per gallon, etc. The SI exhaust emission factors in the NONROAD model are reported in g/hp-hr, with the exception of nonroad motorcycles and all-terrain vehicles, which are reported in g/mile. The SI BSFCs are reported in lb/hp-hr, with the exception of nonroad motorcycles and all-terrain vehicles, which are reported in lb/mile.
Title from title screen (viewed on July 7, 2006). "Report no. NR-010c." "EPA420-P-02-015." "November 2002." Includes bibliographical references.