Development of a High-Speed Ultraviolet Spectrometer for Remote Sensing of Mobile Source Nitric Oxide Emissions

Publication Date

12-27-1999

Document Type

Article

Organizational Units

College of Natural Science and Mathematics, Chemistry and Biochemistry

Keywords

Atmospheric chemistry, Emissions, Pollutants

Abstract

The University of Denver (DU) has developed a new remote sensor for the measurement of mobile source nitric oxide (NO). This system is integrated with an existing infrared remote sensor and is capable of measuring carbon monoxide and hydrocarbons in addition to NO, at a rate of more than 1000 vehicles/hr. The detection limit on a low-emitting vehicle under typical measurement conditions is 24 parts per million NO (3 sigma). Measurements from this instrument correlated well in a side-by-side comparison with the previous NO remote sensor developed at DU, and we have used this study to confirm a suspected interference by aromatic hydrocarbons in the older instrument. The results of an extended field experiment using the new instrument, conducted in fall 1997, are also presented. The NO emissions of the fleet measured in this study (averaging 15.0 g NO/gal) exhibit a skewed distribution typical of mobile sources. This paper also describes the relationship between NO emissions and model year and NO emissions and vehicle acceleration, as measured by the new remote sensor.

Copyright Statement / License for Reuse

All Rights Reserved
All Rights Reserved.

Copyright Date

12-27-1999

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

49

Issue

12

First Page

1463

Last Page

1468

ISSN

2162-2906

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