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Proceedings Paper

Monocyclic aromatic hydrocarbons measured by differential optical absorption spectroscopy in urban areas (China)
Author(s): Pinhua Xie; Wenqing Liu; Cheng Liu; Yong Yu; Rainer Volkerman; Qiang Fu; Kai Uwe Mettendorf; Ulrich Platt
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Paper Abstract

Monocyclic aromatic hydrocarbons are regarded as one of the most important classes of hydrocarbons in the atmosphere since they are a potential risk for human health and play a key role for photochemical smog formation. Differential Optical Absorption Spectroscopy (DOAS) has been widely used for many trace gases monitoring in the atmosphere however he analysis of aromatic compounds is difficult and the spectral structures from interfering absorbers (e.g. O2) should be very careful to separate correctly. This paper describes a spectral evaluation technique of aromatic compounds from DOAS measurement and summarizes the results of field measurements of benzene toluene xylene (BTX) in Chinese cities Beijing (2000) Shanghai (2001) and Hefei (2002). High concentrations of BTX were observed in Beijing and Shanghai whereas low concentrations in Hefei. This study will provide useful information to help understanding air pollution and atmospheric chemistry processes in urban areas ofChina and thereby contributes towards an improved pollution control strategy in Chinese cities.

Paper Details

Date Published: 12 May 2005
PDF: 9 pages
Proc. SPIE 5832, Optical Technologies for Atmospheric, Ocean, and Environmental Studies, (12 May 2005); doi: 10.1117/12.619860
Show Author Affiliations
Pinhua Xie, Anhui Institute of Optics and Fine Mechanics, CAS (China)
Wenqing Liu, Anhui Institute of Optics and Fine Mechanics, CAS (China)
Cheng Liu, Anhui Institute of Optics and Fine Mechanics, CAS (China)
Yong Yu, Chalmers Univ. of Technology (Sweden)
Rainer Volkerman, Ruprecht Karls Univ. (Germany)
Qiang Fu, China National Environmental Monitoring Ctr. (China)
Kai Uwe Mettendorf, Ruprecht Karls Univ. (Germany)
Ulrich Platt, Ruprecht Karls Univ. (Germany)


Published in SPIE Proceedings Vol. 5832:
Optical Technologies for Atmospheric, Ocean, and Environmental Studies
Daren Lu; Gennadii G. Matvienko, Editor(s)

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