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Source apportionment and distribution of atmospheric mercury in urban Beijing, China
作者: Zhou,Xiaocheng ; Du,Jianguo ; Wang, ChuanYuan(王传远) ; Liu,Sujian
刊名: Chinese Journal of Geochemistry
出版日期: 2010
卷号: 29, 期号:2, 页码:182-190
关键词: Mercury (metal) ; Coal combustion ; Concentration (process) ; Gems ; Leakage (fluid)
产权排序: (1) School of Earth and Space Sciences, University of Science and Technology of China, Hefei 230026, China; (2) Institute of Earthquake Science, China Earthquake Administration, Beijing 100036, China; (3) Yantai Institute of Coastal Zone Research for Sustainable Development, Chinese Academy of Sciences, Yantai 264003, China; (4) Seismological Press, China Earthquake Administration, Beijing 100081, China
通讯作者: Du, J.
作者部门: 污染过程与控制实验室
中文摘要: The concentration of gaseous elemental mercury (GEM) in the atmosphere of urban Beijing was measured from October 2003 to September 2004 to investigate the origins and spatial-temporal variations of atmospheric Hg. The mean value of Hg concentration is 17.1 ng·m-3 (n=653). The atmospheric Hg data showed spatial-temporal variations throughout the duration of our observation. The maximum GEM concentration (53.7 ng·m-3) was observed at Gucheng in the western area of urban Beijing. The GEM concentrations increased from the north to the south of the studied area, and were higher in winter than in summer. The highest and lowest monthly averages of GEM concentrations were measured to be 23.3 and 4.1 ng·m-3 in January and July, respectively. In addition, GEM concentrations are higher in the daytime than at night in Autumn and from 14 March to 15 April, but daily GEM variation showed an inverse pattern from 22 April to 22 May. In winter, two peak values of GEM concentrations occurred at 13:30 and 21:30. Daily variation of GEM concentrations in summer was the lowest in the four seasons. Mercury from coal combustion was estimated to be the main source of anthropogenic emissions in Beijing from October 2003 to September 2004. Additionally, Hg emission from natural gas burning was estimated to be another dominant source of atmospheric Hg in Beijing.
收录类别: EI
语种: 英语
内容类型: 期刊论文
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Recommended Citation:
Zhou,Xiaocheng,Du,Jianguo,Wang,Chuanyuan,et al. Source apportionment and distribution of atmospheric mercury in urban Beijing, China[J]. Chinese Journal of Geochemistry,2010,29(2):182-190.
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