Remote Sensing of In-Use Heavy-Duty Diesel Trucks

Publication Date

10-21-2006

Document Type

Article

Organizational Units

College of Natural Science and Mathematics, Chemistry and Biochemistry

Keywords

Atmospheric chemistry, Emissions, Pollutants, Heavy-duty diesel trucks

Abstract

On-road measurements in 2005 of carbon monoxide (CO), hydrocarbons, nitric oxide, nitrogen dioxide, and sulfur dioxide from 1641 individually identified heavy-duty diesel trucks at two locations in Colorado are reported. Carbon monoxide and nitric oxide show increasing emissions with increased altitude. Oxides of nitrogen (NOx) emissions have decreased with more recent model years over the last 10 years but are the same as vehicles that are 20 years old. At the Golden, CO site, there was a statistically significant decrease in fleet emissions of CO and NOx since a similar study in 1999. There was no emission trend for CO or NOx with gross vehicle weight or odometer in units of grams of pollutant per kilogram of fuel consumed. Data from this study suggest that on-road remote sensing can detect illegal, high sulfur fuel use from individual heavy-duty diesel trucks. Ammonia emissions from this study were below the detection limit of the instrument but will be useful as a baseline value for future comparison.

Copyright Statement / License for Reuse

All Rights Reserved
All Rights Reserved.

Copyright Date

10-21-2006

Rights Holder

American Chemical Society

Provenance

Received from author

Language

English (eng)

Publication Statement

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

Publication Title

Environmental Science & Technology

Volume

40

Issue

22

First Page

6938

Last Page

6942

ISSN

1520-5851

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