Choi Eun-Mi, Kim Seung-Hee, Holsen Thomas M, Yi Seung-Muk
Graduate School of Public Health, Department of Environmental Health, Seoul National University, Yeongon-dong, Chongro-gu, Seoul 110-799, Republic of Korea.
Environ Pollut. 2009 Mar;157(3):816-22. doi: 10.1016/j.envpol.2008.11.023. Epub 2008 Dec 25.
Total gaseous mercury (TGM) and carbon monoxide (CO) were measured every 5min and hourly, respectively, in Seoul, Korea, from February 2005 through December 2006. The mean concentrations of TGM and CO were 3.44+/-2.13ngm(-3) and 613+/-323ppbv, respectively. TGM and CO concentrations were highest during the winter and lowest during the summer. In total, 154 high TGM concentration events were identified: 86 were classified as long-range transport events and 68 were classified as local events. The TGM and CO concentrations were well correlated during all long-range transport events and were weakly correlated during local events. Five-day backward trajectory analysis for long-range transport events showed four potential source regions: China (79%), Japan (13%), the Yellow Sea (6%), and Russia (2%). Our results suggest that measured DeltaTGM/DeltaCO can be used to identify long-range transported mercury and to estimate mercury emissions from long-range transport.
2005年2月至2006年12月期间，在韩国首尔分别每5分钟和每小时测量一次总气态汞（TGM）和一氧化碳（CO）。TGM和CO的平均浓度分别为3.44±2.13纳克/立方米和613±323 ppbv。TGM和CO浓度在冬季最高，夏季最低。总共识别出154次高TGM浓度事件：86次被归类为长距离传输事件，68次被归类为本地事件。在所有长距离传输事件中，TGM和CO浓度相关性良好，而在本地事件中相关性较弱。对长距离传输事件的五日反向轨迹分析显示了四个潜在源区：中国（79%）、日本（13%）黄海（6%）和俄罗斯（2%）。我们的结果表明，所测量的ΔTGM/ΔCO可用于识别长距离传输的汞并估算长距离传输的汞排放。
