MOBILE 4 EXHAUST EMISSION FACTORS AND INSPECTION/MAINTENANCE BENEFITS FOR PASSENGER CARS

The MOBILE4 Tech IV Credit Model is used to estimate the emission factor equations, the effects of Inspection and Maintenance (I/M) programs, and the bag fraction equations for 1981 and later passenger cars. The model's results are then stored in the EPA MOBILE4 emission factor model database. The report describes the development , use and results of the Tech IV model. It also documents the normalized bag fractions, high altitude emission factors, biennial I/M credits, and idle emissions I/M credits used in MOBILE4.

  • Corporate Authors:

    Environmental Protection Agency

    Standards Development & Support Branch, 2565 Plymouth Road
    Ann Arbor, MI  United States  48105
  • Authors:
    • GLOVER, E L
    • BRZEZINSKI, D J
  • Publication Date: 1989-8

Media Info

  • Pagination: 66 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00494284
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: EPA/AA/TSS/IM-89/3
  • Files: TRIS
  • Created Date: May 31 1990 12:00AM