| 小秦岭金矿区西峪河底泥重金属元素污染的潜在生态危害评价 |
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| 引用本文： | 张江华,赵阿宁,陈华清,徐友宁,何芳.小秦岭金矿区西峪河底泥重金属元素污染的潜在生态危害评价[J].地质通报,2008,27(8):1286-1291. |
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| 作者姓名： | 张江华 赵阿宁 陈华清 徐友宁 何芳 |
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| 作者单位： | 中国地质调查局西安地质调查中心 |
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| 摘 要： | 重金属元素易于累积，生态效应影响强烈。分析了陕豫接壤的西峪河水系沉积物中Hg、Pb、Cd、As、Cr、Cu、Zn 7种重金属元素的含量，根据地区参比值，评价了金矿活动对西峪河底泥的污染。结果显示Hg、Pb是主要的污染元素；进而用潜在生态危害指数法探讨了重金属元素污染的潜在生态危害性，认为整个西峪河流域的Hg、Pb潜在生态危害很强，Cd具有强的潜在生态危害，而Cr、As、Zn的潜在生态危害性轻微。
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| 关 键 词： | 小秦岭金矿区 河流底泥 重金属元素 累积污染 潜在的生态危害 |
Evaluation of potential ecological risk of heavy-metal pollution in bottom mud of the Xiyu River in the Xiaoqinling gold mining area |
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| ZHANG Jiang-hu,ZHAO A-ning,CHEN Hua-qing,XU You-ning,HE Fang.Evaluation of potential ecological risk of heavy-metal pollution in bottom mud of the Xiyu River in the Xiaoqinling gold mining area[J].Geologcal Bulletin OF China,2008,27(8):1286-1291. |
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| Authors: | ZHANG Jiang-hu ZHAO A-ning CHEN Hua-qing XU You-ning HE Fang |
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| Abstract: | Heavy metals are easy to accumulative, which may yield strong ecological effects. This paper analyzes contents of the seven heavy metals Hg, Pb, Cd, As, Cr, Cu and Zn in sediments of the Xiyu River on the Shaanxi-Henan border. According to the contrast parameter, the pollution of bottom sediments of the Xiyu River by gold mining operations was evaluated. The results show that mercury and lead were main pollution elements. The potential ecological risk of heavy-metal pollution is discussed using the potential ecological risk index. The authors think that: the potential ecological risk of mercury and lead in the whole Xiyu River drainage area is very strong and Cd has strong potential ecological risk, while the potential ecological risks of Cr, As and Zn are weak. |
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| Keywords: | Xiaoqinling gold mining area river bottom mud heavy metals cumulative pollution potential ecological risk |
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