The influence of long-range transport on atmospheric mercury on Jeju Island, Korea.
The influence of long-range transport on atmospheric mercury on Jeju Island, Korea.
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DOI：
10.1016/j.scitotenv.2009.10.029
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发表时间：
2010-02
期刊：
影响因子：
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通讯作者：
H. T. Nguyen;Minyoung Kim;Ki‐Hyun Kim
中科院分区：
文献类型：
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作者：
H. T. Nguyen;Minyoung Kim;Ki‐Hyun Kim
2006年5月至2007年5月在韩国济州岛偏远地区测量了总气态汞（TGM）浓度和相关环境参数。整个研究期间汞的小时平均浓度为3.85±1.68ngm−3（范围为0.10-17.9：n=7450）。岛上汞的时间模式的特点是春季/秋季相对夏季/冬季以及白天相对夜间相对占主导地位。通过评估亚洲沙尘 (AD) 与 PM10 数据的关系，研究了亚洲沙尘 (AD) 对汞分布的可能影响。由于 Hg 和 PM10 水平（高于 200 µgm−3）之间存在很强的双对数逆相关性，因此很难解释这两个参数之间的直接关系。然而，对气团运动模式的分析证实，济州岛的汞水平受周边地区主要源过程综合影响的影响最大：工业和AD（中国）、工业（韩国）和火山活动（日本）。
The concentrations of total gaseous mercury (TGM) and relevant environmental parameters were measured at a remote area on Jeju Island, Korea from May 2006 to May 2007. The hourly mean concentration of Hg for the entire study period was 3.85±1.68ngm−3(range of 0.10–17.9: n=7450). The temporal patterns of Hg at the island site were characterized by the relative dominance in spring/fall over summer/winter and in daytime over nighttime. The possible impact of Asian dust (AD) on Hg distribution was examined by assessing its relationship with PM10data. Because of a strong inverse log–log correlation between Hg and PM10levels (above 200µgm−3), a direct relationship between the two parameters is difficult to account for. However, the analysis of air mass movement patterns confirmed that the Hg levels on Jeju Island were affected most by the combined effects of major source processes in the surrounding areas: industrial and AD (China), industrial (Korea), and volcanic activity (Japan).