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Monitoring of atmospheric mercury at a global atmospheric watch (GAW) site on An-Myun Island, Korea

Cited 40 time in scopus
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Title
Monitoring of atmospheric mercury at a global atmospheric watch (GAW) site on An-Myun Island, Korea
Other Titles
안면도 전지구대기관측소에서 대기 수은의 모니터링
Authors
Han Thi Nguyen
Choi, Wookap
Lee, Jeong Soon
Youn, Yong-Hoon
Shon, Zang-Ho
Hong, Sung-Min
Kim, Min-Young
Subject
Engineering; Astronomy & Astrophysics; Geology; Meteorology & Atmospheric Sciences
Keywords
Background; Island; Long-range transport; Mercury; Monitoring
Issue Date
2007
Citation
Han Thi Nguyen, et al. 2007. "Monitoring of atmospheric mercury at a global atmospheric watch (GAW) site on An-Myun Island, Korea". WATER AIR AND SOIL POLLUTION, 185(1-4): 149-164.
Abstract
In order to investigate the regional background concentration levels of mercury (Hg), measurements were routinely recorded on An-Myun Island off the coast of Korea (December 2004 to April 2006). The mean concentration of Hg computed from the entire measurement period was 4.61 +/- 2.21 ng m(-3) with a range of 0.10-25.4 ng m(-3) (N=10,485). Using these data, we inspected various aspects of Hg behavior from the relatively remote island of An-Myun in Korea. Inspection of the seasonal patterns of Hg indicated that its concentration levels generally peaked in spring, while reached a minimum in summer. The summertime deficiency of Hg along with the lack of diurnal variation suggests that the environmental behavior of Hg at the study site was strongly suppressed by heavy precipitation during specific period. The diurnal variations of Hg, typically characterized by a relative daytime dominance, are distinguishable between seasons so that such patterns disappear during the summer. The results of our analysis, when inspected in terms of long-range transport of airborne pollutants, imply that Hg concentration levels can be affected intensively by trans-boundary input processes over certain period of time. Its springtime dominance hence suggests the combined effects of various local source processes and the meteorological conditions favorable for the massive air mass transport phenomenon (such as Asian Dust storms) during that time period.
URI
http://repository.kopri.re.kr/handle/201206/6171
DOI
http://dx.doi.org/10.1007/s11270-007-9438-5
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