Emission Characteristics of Mexico City Vehicles

Publication Date

11-1992

Document Type

Article

Organizational Units

College of Natural Science and Mathematics, Chemistry and Biochemistry

Keywords

Atmospheric chemistry, Emissions, Pollutants

Abstract

The University of Denver remote sensor for automobile exhaust was set up for nine days at five locations in the Mexico City area. A total of 31,838 valid readings for CO and HC emissions were obtained. The emissions distribution was unlike any other we have observed in North America or Europe, in that the emissions for both CO and HC were vastly greater than seen elsewhere. The readings are discussed in terms of the fraction of CO and HC which would be measured by a tailpipe probe, and in terms of grams emitted per gallon of gasoline. The median CO emission was 3.8 percent, with half of the CO emissions coming from the 24 percent of the fleet with over 6.6 percent CO in the exhaust. The median HC emission was 1,100 parts per million measured as propane equivalent, while half the emissions come from twelve percent of the fleet with more than 4,000 ppm propane equivalent in the exhaust.

Copyright Statement / License for Reuse

All Rights Reserved
All Rights Reserved.

Copyright Date

11-1-1992

Rights Holder

Air & Waste Management Association

Provenance

Received from author

Language

English (eng)

Extent

6 pgs

Publication Statement

Copyright is held by the Air & Waste Management Association. User is responsible for all copyright compliance.

Publication Title

Journal of the Air & Waste Management Association

Volume

42

Issue

11

First Page

1424

Last Page

1429

ISSN

2162-2906

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