| 乐安江沉积物重金属污染及生态风险性评价 |
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| 引用本文： | 何孟常,王子健,汤鸿霄. 乐安江沉积物重金属污染及生态风险性评价[J]. 环境科学, 1999, 20(1): 7-10 |
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| 作者姓名： | 何孟常 王子健 汤鸿霄 |
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| 作者单位： | 中国科学院生态环境研究中心国家重点环境水化学实验实,北京,100085 |
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| 基金项目： | 联合国教科文组织、人与生物圈"生态合作研究项目,, |
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| 摘 要： | 对１９８７－１９９５年期间所采集的乐安江表层沉积物中的重金属含量进行了统计分析和生态风险性评价。结果表明,德兴铜矿的矿山酸性废水和洎水河河水,使乐安江沉积物受到重金属的严重污染。
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| 关 键 词： | 乐安江 沉积物 重金属污染 生态风险性评价 |
| 收稿时间： | 1998-02-15 |
Pollution and Ecological Risk Assessment for Heavy Metals in Sediments of Le'an River |
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| He Mengchang,Wang Zijian and Tang Hongxiao. Pollution and Ecological Risk Assessment for Heavy Metals in Sediments of Le'an River[J]. Chinese Journal of Environmental Science, 1999, 20(1): 7-10 |
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| Authors: | He Mengchang Wang Zijian Tang Hongxiao |
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| Affiliation: | State key Lab. of Environ. Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085;State key Lab. of Environ. Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085;State key Lab. of Environ. Aquatic Chemistry, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085 |
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| Abstract: | By integrating and comparison of the experiment dada collected during 1987 to 1995 on Le'an River,the pollution and ecological risk for heavy metals in sediments were assessed.The results showed that the sediments of Le'an River were heavily polluted due to discharge from Dexing copper mine and mines along the Jishui River.There were high contents of copper in sediment in the upstream (A04_A06) due to the pollution from Dexing copper mine and high concentrations of zinc,copper and lead in sediments at site A07,and rather high concentrations of copper and zinc in the downstream (after site A07) due to the pollution from the upstream and Jishui River.The correlation coefficients between Cu against S,Fe or hydroxides were very significant.The analysis of partial correlation coefficients indicated that S was a main receptor for Cu in sediments.The correlation coefficients of Pb-Mn(r=0.9422),Pb-Fe(r=0.7271) and Zn-Mn(r=0.8081)was also very significant.We concluded that the heavy metals in sediments possess potential ecological risk. |
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| Keywords: | Le'an River sediment heavy metal pollution ecological risk assessment |
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