| 大伙房水库沉积物重金属形态分析及污染特征 |
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| 引用本文： | 罗 燕,秦延文,张 雷,郑丙辉,贾 静,曹 伟.大伙房水库沉积物重金属形态分析及污染特征[J].环境科学研究,2011,24(12):1370-1377. |
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| 作者姓名： | 罗 燕 秦延文 张 雷 郑丙辉 贾 静 曹 伟 |
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| 作者单位： | 1.中国环境科学研究院,环境基准与风险评估国家重点实验室, 北京 100012;中国环境科学研究院, 国家环境保护河口海岸环境重点实验室, 北京 100012 |
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| 基金项目： | 国家水体污染控制与治理科技重大专项(2009ZX07528-002) |
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| 摘 要： | 采用BCR连续提取法对大伙房水库沉积物中7种重金属元素(Cr，Ni，Cu，Zn，As，Cd和Pb)的赋存形态进行了分析，并结合重金属总量讨论了各元素的潜在环境危害性. 结果表明，Cd主要以醋酸可提取态及可还原态存在，具有很强的环境危害; Pb主要以极高比例的可还原态存在，潜在环境危害较高; Zn，As和Cu存在较大比例的酸可提取态及可还原态，也具有一定程度的潜在环境危害; Cr和Ni以残渣态为主，产生环境危害的可能性极小. 相关分析结果显示，Cu，Zn，As，Cd和Pb各赋存形态含量及总量与沉积物性质之间的相关性均不显著，说明大伙房水库沉积物受到了这5种重金属元素外源输入的影响.
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| 关 键 词： | 大伙房水库 沉积物 重金属 形态 |
| 收稿时间： | 2011/1/20 0:00:00 |
| 修稿时间： | 2011/4/6 0:00:00 |
Speciation and Pollution Characteristics of Heavy Metals in the Sediment of Dahuofang Reservoir |
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| LUO Yan,QIN Yan-wen,ZHANG Lei,ZHENG Bing-hui,JIA Jing and CAO Wei.Speciation and Pollution Characteristics of Heavy Metals in the Sediment of Dahuofang Reservoir[J].Research of Environmental Sciences,2011,24(12):1370-1377. |
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| Authors: | LUO Yan QIN Yan-wen ZHANG Lei ZHENG Bing-hui JIA Jing and CAO Wei |
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| Institution: | LUO Yan,QIN Yan-wen,ZHANG Lei,ZHENG Bing-hui,JIA Jing,CAO Wei 1.State Key Laboratory of Environmental Criteria and Risk Assessment,Chinese Research Academy of Environmental Sciences,Beijing 100012,China 2.State Environmental Protection Key Laboratory of Estuary and Coastal Environment,China |
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| Abstract: | BCR three stage sequential extraction procedure was applied to examine the speciation of seven heavy metal elements(Cr,Ni,Cu,Zn,As,Cd and Pb) in the sediments from Dahuofang reservoir.The potential environmental risks were discussed according to the total contents of the heavy metals.The results showed that: Cd mainly existed in weak acid soluble fraction and reducible fraction with very high environmental risk;Pb mainly existed in reducible fraction with high environmental risk;Zn,As and Cu presented risk ... |
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| Keywords: | Dahuofang reservoir sediment heavy metal speciation |
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