| 贵州省万山汞矿区地表水中不同形态汞的空间分布特点 |
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| 引用本文： | 仇广乐,冯新斌,王少锋.贵州省万山汞矿区地表水中不同形态汞的空间分布特点[J].地球与环境,2004(Z1). |
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| 作者姓名： | 仇广乐 冯新斌 王少锋 |
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| 作者单位： | 中国科学院地球化学研究所环境地球化学国家重点实验室，中国科学院地球化学研究所环境地球化学国家重点实验室，中国科学院地球化学研究所环境地球化学国家重点实验室 贵州 贵阳 550002，中国科学院研究生院，北京 100039，贵州 贵阳 550002，贵州 贵阳 550002，中国科学院研究生院，北京 100039 |
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| 基金项目： | 国家自然科学基金项目(40173037)
中国科学院创新项目(KZCX2-105) |
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| 摘 要： | 利用两次金汞齐-冷原子荧光光谱法,对贵州省废弃汞矿山万山矿区地表水不同形态汞(活性态、溶解态、颗粒态)的含量进行测定。样品活性态汞为1.04~402 ng／L;溶解态汞为12.5~426 ng／L;颗粒态汞变化很大,最低只有1.38 ng／L,最高达4 427 ng／L。研究表明:(1)直接与矿山冶炼活动排放物炉渣接触的溪流水污染程度最高,总汞高达4.46μg／L;(2)与矿山开采活动排放的废石或贫矿石接触的溪流水污染程度较低;(3)远离汞矿开采、冶炼活动区的地表水总汞接近汞矿化带背景参考值。
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| 关 键 词： | 分布特点 汞形态 地表水 汞矿区 |
MERCURY SPECIATIONS AND THEIR DISTRIBUTION IN SURFACE WATER FROM WANSHAN MERCURY MINING DISTRICT, GUIZHOU PROVINCE |
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| QIU Guang-le,FENG Xin-bin,WANG Shao-feng.MERCURY SPECIATIONS AND THEIR DISTRIBUTION IN SURFACE WATER FROM WANSHAN MERCURY MINING DISTRICT, GUIZHOU PROVINCE[J].Earth and Environment,2004(Z1). |
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| Authors: | QIU Guang-le FENG Xin-bin WANG Shao-feng |
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| Abstract: | Active, dissolved, particulate and total Hg concentrations were measured in surface waters originated from mercury mining areas to evaluate Hg contamination in fluvial systems in the Wanshan district, Guizhou Province. The concentrations of total Hg in water samples varied from 15. 3 ng/L to 4 462 ng/L and were elevated relative to total mercury concentrations in natural waters. The total dissolved Hg concentrations generally range from 12. 5 to 426 ng/L, active Hg varies from 1. 04 to 402 ng/ L, and paniculate Hg changes between 1. 38 and 4 427 ng/L, respectively. It is suggested that the fluvial systems in the Wanshan area have been heavily Hg-contaminated due to long-time mining activities and Hg release from the wastes even after the mining activity has been ceased. |
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| Keywords: | characteristics of Hg distribution mercury speciations surface water mercury-mining district |
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