Mercury isotope variations in surface soils in different contaminated areas in Guizhou Province,China

查看全文 作　　者：FENG [1]XinBin;YIN [2]RunSheng;YU [1,3]Ben;DU [1,3]BuYun

机构地区：[1]State Key Laboratory of Environmental Geochemistry,Institute of Geochemistry,Chinese Academy of Sciences;[2]State Key Laboratory of Ore Deposit Geochemistry,Institute of Geochemistry,Chinese Academy of Sciences;[3]Graduate University of the Chinese Academy of Sciences

出　　处：《Chinese Science Bulletin》索引2013年第58卷第2期,共7页

基　　金：supported by the National Natural Science Foundation of China (40825011) 摘　　要：Guizhou Province is known as a heavily Hg-polluted area in China due to its special geochemical background and complicated Hg emission sources.In this study,we investigated the Hg isotope compositions of surface soil samples in the Hg mining area,zinc smelting area,coal combustion area,which are known to be the typical pollution regions of Hg in this province.We also compared the Hg isotopic fingerprints of primary Hg sources,such as hydrothermal Hg-bearing ores,coals and atmospheric Hg samples.According to our study,Hg stored in surface soils in different pollution regions in Guizhou Province displays a wide range of both mass dependent fractionation(MDF,δ202Hg) and mass independent fractionation(MIF,△199Hg).δ 202 Hg varies by 2.0‰ and △199Hg varies by 0.25‰ in the investigated surface soils.This study demonstrated that using a 'MDF-MIF' two dimensional Hg isotope system could be particularly useful in discriminating Hg sources in soils. 关键词：汞同位素表层土壤污染地区贵州省中国地球化学背景土壤样品同位素组成

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Mercury isotope variations in surface soils in different contaminated areas in Guizhou Province,China

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