冬季降雪过程对城市大气气态汞污染的影响
508 生态环境学报 第19卷第3期（2010年3月）
出现在上午6—9时，其变化趋势与相对湿度基本一致；降雪期间的气态总汞变化趋势无明显规律性。
参考文献：
[1] SCHROEDER W H, MUNTHE J. Atmospheric mercury-an over-view[J]. Atmospheric Environment, 1998, 32(5): 809-822.
[2] LINDQVIST O, JOHANSSON K, AASTRUP M, et al. Mercury in the
Swedish environment-recent research on causes, consequences and corrective methods[J]. Water, Air and Soil Pollution, 1991, 55: 1-261. [3] FENG X B, TANG S L, SHANG L H, et al. Total gaseous mercury in
the atmosphere of Guiyang , PR China[J]. Science of the Total Envi-ronment, 2003, 304(1/3): 61-72.
[4] LIU S L, NADIM F, PERKINS C, et al. Atmospheric mercury moni-toring survey in Beijing, China[J]. Chemosphere, 2002, 48(1): 97-107. [5] 万奇, 冯新斌, 郑伟, 等. 长白山地区大气气态总汞含量的季节性
特征研究[J]. 环境科学, 2008, 29(2): 296-299.
WAN Qi, FENG Xinbin, ZHEN Wei, et al. Seasonal variation of total gaseous mercury in Changbai Mountain Area[J]. Environmental Sci-ence, 2008, 29(2): 296-299.
[6] 王书肖, 刘敏, 蒋靖坤, 等. 中国非燃煤大气汞排放量估算[J]. 环
境科学, 2006, 27(12): 2401-2406.
WANG Shuxiao, LIU Min, JIANG Jingkun, et al. Estimate the mer-cury emissions from noncoal sources in China[J]. Environmental Sci-ence, 2006, 27(12): 2401-2406.
[7] 王少峰, 冯新斌, 仇广乐, 等. 万山汞矿区地表与大气界面间汞交
换通量研究[J]. 环境科学, 2006, 27(8): 1487-1494.
WANG Shaofeng, FENG Xinbin, QIU Guangle, et al. Mercury ex-change fluxes between air and soil interface over different type of land in Wanshan Hg mine area[J]. Environmental Science, 2006, 27(8): 1487-1494.
[8] SAINT-LOUIS V L, RUDD J W, KELLY C A, et al. Wet deposition
of methyl mercury in Northwestern Ontario compared to other geo-graphic locations[J]. Water, Air and Soil Pollution, 1995, 80: 405-414. [9] FERRARI C P, MOREAU A L, BOUTRON C F. Clean conditions for
the determination of ultra-low levels of mercury in ice and snow sam-ples[J]. Fresenius Journal of Analytical Chemistry, 2000, 366: 433-437.
[10] 梁敬. 金汞齐富集-原子荧光光谱法测定大气中的气态汞[J]. 光谱
仪器与分析, 2005, 02: 22-24.
LIANG Jing. Determation of total gaseous mercury in the atmosphere by gold amalgamation cold vapor atomic fluorescence spectroscopy[J]. Spectrum Instruments and Analysis, 2005, 02: 22-24.
[11] FERRARI C P, GAUCHARDA P A, ASPMO K, et al. Snow-to-air
exchanges of mercury in an Arctic seasonal snow pack in Ny-Alesund, Svalbard[J]. Atmospheric Environment, 2005, 39: 7633-7645. [12] BLANCHARD P, FROUDE F A, MARTIN J B, et al. Four years of
continuous total gaseous mercury (TGM) measurements at sites in Ontario, Canada[J]. Atmospheric Environment, 2002, 36 (23): 3735-3743.
[13] SCHROEDER W H, MUNTHE J, LINQVIST O. Cycling of mercury
between water, air and soil compartments of the environment[J]. Wa-ter, Soil and Air Pollution, 1989, 48(324): 337-347.
[14] POISSANT L, CASIMIR A. Water-air and soil-air exchange rate of
total gaseous mercury measured at background sites[J]. Atmospheric Environment, 1998, 32(5): 883-893.
[15] 冯新斌, 陈业材, 朱卫国. 土壤挥发性汞释放通量的研究[J]. 环境
科学, 1996, 17(2): 20-22.
FENG Xinbin, CHEN Yecai, ZHU Weiguo. The fluxes of volatile mercury over soil surface in Guizhou Province[J]. Environmental Sci-ence, 1996, 17(2): 20-22
[16] ROSAA D A, VOLKE-SEPULVEDAA T, SOLORZANO G, et al.
Survey of atmospheric total gaseous mercury in Mexico[J]. Atmos-pheric Environment, 2004, 38: 4839-4846.
[17] 庄美华, 朱辉忠, 蔡伟星, 等. 应用ICP-MS分析汽油中微量的砷、
汞、铅[J]. 分析测试技术与仪器, 2005, 11(4): 300-302.
ZHUANG Meihua, ZHU Huanzhong, CAI Weixing, et al. Determina-tion of trace Arsenic Mercury and Lead in gasoline by ICP-MS[J]. Analysis and Testing Technology and Instruments, 2005, 11(4): 300-302.
Influence of snowing event on gaseous mercury concentration
in urban atmosphere
TONG Yindong, ZHANG Wei, HU Dan, WANG Xuejun
Ministry of Education Laboratory of Earth Surface Processes//College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
Abstract: An intensive field monitoring campaign was conducted for measurement of total gaseous mercury (TGM) in Beijing urban area during the snow period, 2009. Results show the mean concentration of TGM within 96 hours after the first snowing event is about 70% of the concentrations during dry days. The impact of meteorological factors on TGM concentration, including air pressure, wind speed, gust speed, temperature and relatively humidity, were analyzed. Results indicate that the meteorological influences on TGM were mainly caused by wind speed (r= -0.527), gust wind speed (r= -0.574) during the snow period; while during dry days, influences were caused by wind speed (r= -0.691), gust wind speed(r= -0.726) and relatively humidity(r= 0.692). During dry days, the TGM in the mid-night and early morning was much higher, and the daily variation showed a similar trend with the relative hu-midity; while during snow days, no clear variation pattern was observed.
Key words: snowfall; total gaseous mercury (TGM); meteorological factors; daily variation