On-Road Evaluation of Inspection/Maintenance Effectiveness

Publication Date

1996

Document Type

Article

Organizational Units

College of Natural Science and Mathematics, Chemistry and Biochemistry

Keywords

Atmospheric chemistry, Emissions, Pollutants, Inspection and Maintenance

Abstract

This study presents an evaluation of inspection and maintenance (I/M) programs in terms of their effect on motor vehicle carbon monoxide (CO) and hydrocarbon (HC) exhaust emissions as measured on-road by remote sensing technology. The results show that the performance of past I/M programs at several monitored locations has been less effective than predicted by the U.S. Environmental Protection Agency. The emissions from I/M and non-I/M vehicles measured in Tucson, AZ, and in rural Colorado show no statistically significant difference. An apparent I/M effect observed in El Paso, TX, and in Denver, CO, is smaller than predicted. Comparisons of CO emissions by vehicle age for several years at the same locations in Chicago and Denver show no evidence that the Chicago centralized I/M program was more effective than the Denver decentralized I/M program.

Copyright Statement / License for Reuse

All Rights Reserved
All Rights Reserved.

Rights Holder

American Chemical Society

Provenance

Received from author

Language

English (eng)

Extent

6 pgs

Publication Statement

Copyright is held by the American Chemical Society. User is responsible for all copyright compliance.

Publication Title

Environmental Science & Technology

Volume

30

Issue

5

First Page

1445

Last Page

1450

ISSN

1520-5851

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