12 May 2005 Monocyclic aromatic hydrocarbons measured by differential optical absorption spectroscopy in urban areas (China)
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Proceedings Volume 5832, Optical Technologies for Atmospheric, Ocean, and Environmental Studies; (2005) https://doi.org/10.1117/12.619860
Event: Optical Technologies for Atmospheric, Ocean, and Environmental Studies, 2004, Beijing, China
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.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Pinhua Xie, Pinhua Xie, Wenqing Liu, Wenqing Liu, Cheng Liu, Cheng Liu, Yong Yu, Yong Yu, Rainer Volkerman, Rainer Volkerman, Qiang Fu, Qiang Fu, Kai Uwe Mettendorf, Kai Uwe Mettendorf, Ulrich Platt, Ulrich Platt, } "Monocyclic aromatic hydrocarbons measured by differential optical absorption spectroscopy in urban areas (China)", Proc. SPIE 5832, Optical Technologies for Atmospheric, Ocean, and Environmental Studies, (12 May 2005); doi: 10.1117/12.619860; https://doi.org/10.1117/12.619860
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