| 运河(杭州段)沉积物中重金属分布特征及变化 |
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| 引用本文： | 朱广伟,王凤平,陈英旭,周根娣,吴静波.运河(杭州段)沉积物中重金属分布特征及变化[J].中国环境科学,2001,21(1):0-0. |
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| 作者姓名： | 朱广伟 王凤平 陈英旭 周根娣 吴静波 |
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| 作者单位： | 1. 浙江大学环境工程系,
2. 杭州市环境保护科学研究所, |
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| 基金项目： | 杭州市环境保护局资助项目(9812) |
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| 摘 要： | 对受重金属污染较重、综合治理历史较长的京杭大运河杭州段沉积物剖面中重金属的垂向分布、整河段沉积物重金属污染程度和潜在生态风险及重金属的存在形态进行了分析讨论.结果表明,经过长期综合治理,运河杭州段沉积物中重金属的污染程度明显下降,新近沉积物重金属含量明显低于60cm深度以下的重金属含量,但沉积物整体污染水平仍较高,Cd是运河杭州段沉积物中生态危害潜力最大的元素,形态分析表明沉积物中重金属的活动性为Cd > Zn > Cu > Pb.
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| 关 键 词： | 沉积物 重金属 运河 杭州 |
| 文章编号： | 1000-6923(2001)01-0065-05 |
| 收稿时间： | 1900-01-01; |
| 修稿时间： | 2000年3月23日 |
Distribution of heavy
metals in the sediments from the Grand Canal (Hangzhou section). |
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| ZHU Guang-wei,CHEN Ying-xu,WANG Feng-ping,ZHOU Gen-di,WU Jing-bo.Distribution of heavy
metals in the sediments from the Grand Canal (Hangzhou section).[J].China Environmental Science,2001,21(1):0-0. |
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| Authors: | ZHU Guang-wei CHEN Ying-xu WANG Feng-ping ZHOU Gen-di WU Jing-bo |
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| Institution: | ZHU Guang-wei1,CHEN Ying-xu1,ZHOU Gen-di2,WANG Feng-ping1 WU Jing-bo2 |
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| Abstract: | The Grand Canal (Hangzhou section) had been seriously polluted by heavy metals and the pollution has been controlled comprehensively for a long time. In this paper, vertical distribution of heavy metals in sediment of the Grand Canal (Hangzhou section) and their pollution degree, potential ecological risk and the fractionation have been studied. It showed that through comprehensive control for a long time, the pollution degree decreased markedly, with the concen-trations of heavy metal in upper sediment lower than that in 60 centimeter deeper. The pollution is still serious. Cadmium is the most ecologically dangerous element and the order of the mobility of heavy metals is Cd > Zn > Cu > Pb by frac-tionation analysis |
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