||An evaluation of restorative maintenance on exhaust emissions from 1975/1976 model year in-use automobiles /
|| Technology Assessment and Evaluation Branch, Emission Control Technology Division, Office of Mobile Source Air Pollution Control, U.S. Environmental Protection Agency,
Air pollution ;
Exhaust emissions ;
Performance evaluation ;
Fuel consumption ;
Carbon monoxide ;
Nitrogen oxides ;
Regression analysis ;
Automobile exhaust ;
||NVFEL Library/Ann Arbor, MI
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
||1 volume (various pagings) : illustrations ; 28 cm
This report describes the results of an automobile exhaust emission testing program conducted by the U.S. Environmental Protection Agency. The purpose of the program was to go beyond EPA's basic surveillance testing to determine the reasons for the difference in emission levels between vehicles on the road and their pre-production counterparts in certification. A total of 300 vehicles were subjected to a series of tests before and after various stages of tune-up. The vehicles were low-mileage 1975 and 1976 models of the three major domestic manufacturers and were obtained from private owners. The testing was performed in three cities by independent laboratories under contractor to EPA. Significant findings include the confirmation of the relatively poor emission performance of newer vehicles, the wide extent of maladjustments and disablements and the large emission reductions possible upon correction of these problems. (Portions of this document are not fully legible)
"December 1977." Includes bibliographical references. "EPA-460/3-77-021."