Record Display for the EPA National Library Catalog

RECORD NUMBER: 4 OF 7

Main Title Derivation of I/M Benefits for Post-1980 Light Duty Vehicles for Low Altitude, Non-California Areas /
Author Hughes, Dave.,
CORP Author Environmental Protection Agency, Ann Arbor, MI. Inspection and Maintenance Staff.
Publisher U.S. Environmental Protection Agency, Office of Air, Noise and Radiation, Office of Mobile Aource Air Pollution Control, Emission Control Technology Division, Inspection and Maintenance Staff,
Year Published 1981
Report Number EPA-AA-IMS/81-2
Stock Number PB81-194102
OCLC Number 54754432
Subjects Motor vehicles--Emission control
Additional Subjects Automobiles ; Exhaust emissions ; Air pollution ; Inspection ; Maintenance ; Performance evaluation ; Catalytic converters ; Computer programs ; MOBILE2 ; computer program
Internet Access
Description Access URL
https://nepis.epa.gov/Exe/ZyPDF.cgi?Dockey=9100UQUA.PDF
Holdings
Library Call Number Additional Info Location Last
Modified
Checkout
Status
ELBD ARCHIVE EPA AA-IMS-81-2 2 copies AWBERC Library/Cincinnati,OH 02/08/2024
ELCD  EPA AA-IMS-81-2 NVFEL Library/Ann Arbor, MI 02/22/2011 DISPERSAL
NTIS  PB81-194102 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 18 pages
Abstract
This report discusses the derivation of I/M benefits for the post-1980 Federal fleet as contained in EPA's emission factor model MOBILE2. As is widely recognized, the post-1980 model year fleet will be predominantly composed of vehicles which employ what has become known as three way catalyst technology. This technology incorporates a sophisticated microprocessor-based engine control system which holds the air/fuel ratio very close to stoichiometry, thereby allowing the three way catalyst to simultaneously convert hydrocarbons (HC), carbon monoxide (CO) and oxides of nitrogen (NOx) to harmless by-products. As could be expected, such a significant shift in technology will have an impact on the expected in-use emissions performance of these vehicles both with and without an inspection and maintenance (I/M) program.
Notes
"EPA-AA-IMS/81-2." Cover title. "Revised March, 1981." Includes bibliographical reference (page 18).