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Modeling, Testing, and Research

Mobile Source Emission Factors Research

This page contains information on mobile source emission factors research being conducted by EPA's Office of Transportation and Air Quality. For further information or assistance regarding this web page, you can contact the MOBILE Model Information Team at fax: 734-214-4939 or email: mobile@epa.gov or by contacting EPA personnel listed below.

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EPA Reports

  • Populations, Activity and Emissions of Diesel Noroad Equipment in EPA Region 7 (PDF) (231 pp, 2.99MB, EPA-420-R-12-009, July 2012) This contractor report summarizes the pilot recruitment protocols, testing procedures, and some preliminary results from emission testing diesel nonroad equipment in EPA Region 7.
  • Evaporative Emission from In-Use Vehicles: Test Fleet Expansion (CRC E-77-2b) Final Report (PDF) (354 pp, 2.25MB, October 2010) This contractor report summarizes the testing procedures, and some preliminary results from the evaporative testing done at the Automotive Testing Laboratory through Harold Haskew and Associates under contract with Southwest Research Institute. This testing program is a continuation of the testing done in cooperation with the Coordinating Research Council, E-77-2.


  • Kansas City PM Characterization Study (PDF) (462 pp, 20MB, EPA420-R-08-009, April 2008) This contractor report summarizes the testing procedures, protocols and some preliminary results from emission testing light-duty vehicles in the Kansas City area.
    • Kansas City Appendices (Zip) (44MB, April 2008) These are the support documents related to the Kansas City PM Characterization Study. Contact: Carl Fulper at 734-214-4400 or Carl Fulper (fulper.carlr@epa.gov).
    • Kansas City Emission Database I (Zip) (67MB, April 2008) This is a relational database containing the vehicle information and aggregated emission information on tests conducted during the Kansas City test program. All tables are in the standard database format (*.DBF) which is usable by a variety of software. A user guide to table relationships and table definitions can be found at the link listed below. Contact: Carl Fulper at 734-214-4400 or Carl Fulper (fulper.carlr@epa.gov).
    • Kansas City Emission Database II (Zip) (97MB, April 2008) This is a relational database contains the all second-by-second data gathered during the Kansas City test program. All tables are in the standard database format (*.DBF) which is usable by a variety of software. A user guide to table relationships and table definitions can be found at the link listed below. Contact: Carl Fulper at 734-214-4400 or Carl Fulper (fulper.carlr@epa.gov).
  • Analysis of Particulate Matter Emissions from Light-Duty Gasoline Vehicles in Kansas City (PDF) (85 pp, 1.1MB, EPA420-R-08-010, April 2008) This EPA report summarizes and analyzes the PM data from Kansas City PM Characterization Study conducted in 2004 and 2005. It supplements the Eastern Research Group contractor report to EPA which describes the details of the study and provides some preliminary results. Contact: Ed Nam at 734-214-4613 or Ed Nam (nam.ed@epa.gov).

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