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Proceedings Paper

Detection of atmospheric NOx gases and volatile organic compounds
Author(s): Michael Campbell; W. X. Peng; Kenneth W. D. Ledingham; A. Marshall; Raghunandan Prasad Singhal
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Paper Abstract

It has been known for some time that the presence of NO plays an important part in the degradation of organic pollutants and in the formation of ozone and nitric acid in the troposphere. In recent years, there has been a significant increase in the concentration of atmospheric NOx and a consequent decrease in air quality. The authors believe that there is now a need for a computer-controlled, near-real time monitoring system for atmospheric gas samples taken from a large urban area. This paper describes a laser-based REMPI procedure which utilizes a high power pulsed laser, atmospheric pressure ionization chamber and data acquisition system and, with detection limits as low as 1 ppb, it may well form the basis of such a system.

Paper Details

Date Published: 25 September 1995
PDF: 10 pages
Proc. SPIE 2510, Fiber Optic and Laser Sensors XIII, (25 September 1995); doi: 10.1117/12.221691
Show Author Affiliations
Michael Campbell, Glasgow Caledonian Univ. (United Kingdom)
W. X. Peng, Univ. of Glasgow (United Kingdom)
Kenneth W. D. Ledingham, Univ. of Glasgow (United Kingdom)
A. Marshall, Univ. of Glasgow (United Kingdom)
Raghunandan Prasad Singhal, Univ. of Glasgow (United Kingdom)


Published in SPIE Proceedings Vol. 2510:
Fiber Optic and Laser Sensors XIII
Ramon P. DePaula; John W. Berthold, Editor(s)

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