Emissions Reductions as a Result of Automobile Improvement

Publication Date

2003

Document Type

Article

Organizational Units

Chemistry and Biochemistry

Keywords

Atmospheric chemistry, Emissions, Pollutants

Abstract

Remote sensing of light duty vehicle on-road tailpipe exhaust has been used to measure on-road mass emissions of automobile fleets in Denver for 13 years and in two other U.S. cities for 5 years. Analysis of these fleets shows that newer automobiles, during a period of fairly constant new car standards, have become continually less polluting independent of measurement location. Improving emissions control technology spurred by federal regulations is thought to have brought about these trends.

Publication Statement

Copyright held by the American Chemical Society.

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