光谱学与光谱分析 |
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Monitoring and Analysis of Air Pollutants Using DOAS in Winter of Beijing |
ZHU Yan-wu1,2,FU Qiang3,XIE Pin-hua1*,LIU Wen-qing1,PENG Fu-min1,QIN Min1,LIN Yi-hui1,SI Fu-qi1,DOU Ke1 |
1. Key Lab of Environmental Optics and Technology, Chinese Academy of Sciences, and Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China 2. School of Chemical Engineering, Hefei University of Technology, Hefei 230009, China 3. China National Environmental Monitoring Center, Beijing 100029, China |
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Abstract Based on the differential optical absorption spectroscopy (DOAS) technology, the measurement of air pollutants (SO2, NO2, HONO and HCHO) was performed continuously from Jan 19, 2007 to Feb 8, 2007 in Peking University campus. The typical diurnal variation characteristic of SO2 concentration, the main source and the meteorological factors that influence the pollutants were analyzed. The results indicated that the typical diurnal variation of SO2 concentration has the same shape as the letter “V” when wind speed was low, and in the afternoon the SO2 concentration was the lowest, while in other time it was high. Coal-burning made prominent contribution to the concentration of atmospheric various pollutants in the heating period of Beijing. Wind speed played a leading role and other meteorological factors also have some effect, which resulted from the influence of the meteorology on diffusion, transmission, elimination of air pollutants.
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Received: 2008-02-06
Accepted: 2008-05-12
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Corresponding Authors:
XIE Pin-hua
E-mail: zhuyw@aiofm.ac.cn
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