Detection of atmospheric NOx gases and volatile organic compounds

Michael Campbell; W. X. Peng; Kenneth W. D. Ledingham; A. Marshall; Raghunandan Prasad Singhal

doi:10.1117/12.221691

25 September 1995 Detection of atmospheric NOx gases and volatile organic compounds

Michael Campbell, W. X. Peng, Kenneth W. D. Ledingham, A. Marshall, Raghunandan Prasad Singhal

Proceedings Volume 2510, Fiber Optic and Laser Sensors XIII; (1995) https://doi.org/10.1117/12.221691
Event: European Symposium on Optics for Environmental and Public Safety, 1995, Munich, Germany

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 NO_x 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.

Citation Download Citation

Michael Campbell, W. X. Peng, Kenneth W. D. Ledingham, A. Marshall, and Raghunandan Prasad Singhal "Detection of atmospheric NOx gases and volatile organic compounds", Proc. SPIE 2510, Fiber Optic and Laser Sensors XIII, (25 September 1995); https://doi.org/10.1117/12.221691

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