Record Display for the EPA National Library Catalog


Main Title Emission effects of inspection and maintenance at cold temperatures /
Author Darlington, Tom.
CORP Author Environmental Protection Agency, Ann Arbor, MI. Office of Mobile Source Air Pollution Control.
Publisher U.S. Environmental Protection Agency, Office of Air, Noise, and Radiation, Office of Mobile Source Air Pollution Control, Emission Control Technology Division, Inspection and Maintenance Staff,
Year Published 1981
Report Number EPA-AA-IMS-81-24
Stock Number PB83-136556
OCLC Number 716019238
Subjects Automobiles--Motors--Exhaust gas ; Motor vehicles--Emission control ; Automobiles--Maintenance and repair
Additional Subjects Motor vehicles ; Exhaust emissions ; Inspection ; Maintenance ; Cold weather tests ;
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
ELCD  EPA AA-IMS-81-24 NVFEL Library/Ann Arbor, MI 05/04/2011
NTIS  PB83-136556 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 31 p. : ill., charts ; 28 cm.
This report discusses the potential effectiveness of Inspection and Maintenance (I/M) programs at reducing carbon monoxide (CO) emissions from vehicles operated at cold temperatures. Four vehicles were deliberately maladjusted and tuned up to simulate the effects of an Inspection and Maintenance program on vehicles needing emission-related repairs. The results indicate that reductions in carbon monoxide emissions occurred when vehicles with maladjusted idle mixture and disconnected choke assist were tuned up. Inasmuch as this test program was limited to four vehicles, the conclusions should be viewed as preliminary. However the results indicate that Inspection and Maintenance has the potential for reducing carbon monoxide emissions from in-use vehicles operated at temperatures below 75F.
Includes bibliographical references. Technical report. Cover title. "EPA-AA-IMS-81-24."