Total gaseous concentrations in mercury in Seoul, Korea: Local sources compared to long-range transport from China and Japan

被引：49
作者：
Choi, Eun-Mi [2 ]
Kim, Seung-Hee [2 ]
Holsen, Thomas M. [3 ]
Yi, Seung-Muk [1 ,2 ]
机构：
[1] Seoul Natl Univ, Grad Sch Publ Hlth, Inst Hlth & Environm, Seoul 110799, South Korea
[2] Seoul Natl Univ, Grad Sch Publ Hlth, Dept Environm Hlth, Seoul 110799, South Korea
[3] Clarkson Univ, Dept Civil & Environm Engn, Potsdam, NY 13699 USA
来源：
ENVIRONMENTAL POLLUTION | 2009年 / 157卷 / 03期
关键词：
CO; Delta TGM/Delta CO; High concentration event; Local event; Long-range transport; Long-range transport event; TGM; ATMOSPHERIC MERCURY; ANTHROPOGENIC SOURCES; EMISSION INVENTORY; AIR; VARIABILITY; COMBUSTION; GUIYANG; AEROSOL; CARBON; CITY;
D O I：
10.1016/j.envpol.2008.11.023
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Total gaseous mercury (TGM) and carbon monoxide (CO) were measured every 5 min and hourly, respectively, in Seoul, Korea, from February 2005 through December 2006. The mean concentrations of TGM and CO were 3.44 +/- 2.13 ng m(-3) and 613 +/- 323 ppbv, 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 Delta TGM/Delta CO can be used to identify long-range transported mercury and to estimate mercury emissions from long-range transport. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：816 / 822
页数：7
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