Abstract

The distribution of pollutants in two urban scale models (point emission source and street canyon with extensive transport) was investigated by means of CO₂ laser photoacoustic spectroscopy in the region of the atmospheric window (9–10 μm). The experimental results of physical modeling are in a good agreement with the numerical calculations performed in the frame of computational fluid dynamic (CFD) modeling. Methanol, ethanol, and ozone (examples of light pollutants), as well as sulfur hexafluoride and 1,2 dichlorethane (examples of heavy pollutants), were selected on the basis of their high resolution spectra acquired by Fourier transform and laser diode spectroscopy.

Characteristics of a photoacoustic air pollution detector at CO₂ laser frequencies

Robert F. Adamowicz and Kee P. Koo
Appl. Opt. 18(17) 2938-2946 (1979)

Measurements of NO and CO in Shanghai urban atmosphere by using quantum cascade lasers

Tang Yuanyuan, Liu Wenqing, Kan Ruifeng, Liu Jianguo, He Yabai, Zhang Yujun, Xu Zhenyu, Ruan Jun, and Geng Hui
Opt. Express 19(21) 20224-20232 (2011)

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Philippe Repond and Markus W. Sigrist
Appl. Opt. 35(21) 4065-4085 (1996)

Laser photoacoustic spectrometer for remote monitoring of atmospheric pollutants

M. A. Gondal
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Nils C. Fernelius
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