| 应用相平衡分配法建立湘江衡阳段沉积物重金属质量基准 |
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| 引用本文： | 韩超南,秦延文,郑丙辉,张雷,曹伟.应用相平衡分配法建立湘江衡阳段沉积物重金属质量基准[J].环境科学,2013,34(5):1715-1724. |
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| 作者姓名： | 韩超南 秦延文 郑丙辉 张雷 曹伟 |
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| 作者单位： | 中国环境科学研究院国家环境保护河口与海岸带环境重点实验室,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, 2012ZX07503-02) |
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| 摘 要： | 采集湘江衡阳段29个站点的表层沉积物样品,测定沉积物中4种重金属(Cu、Pb、Zn和Cd)含量及赋存形态、以及孔隙水中重金属含量,根据相平衡分配法的基本理论,考虑参与沉积物-水相平衡分配的重金属组成,实测法计算重金属的沉积物-水相平衡分配系数(Kp),分别引用美国EPA制定保护水生生物不受重金属慢性毒性影响的基本连续浓度(CCC)和我国地表水环境质量标准(GB 3838-2002)Ⅰ类水质标准,建立两种湘江衡阳段沉积物重金属质量基准(SQC)进行对比分析,其中基于美国CCC建立的湘江衡阳段沉积物重金属质量基准与国内外研究成果相比可比性较好,4种重金属(Cu、Pb、Zn和Cd)的SQC值分别为64.62、55.57、1 360.40和2.34μg.g-1,此SQC具有保护长期生活于沉积物中的底栖生物不受重金属慢性毒性影响的意义.通过单因子评价法将湘江衡阳段沉积物中重金属总量与沉积物质量基准值(SQC)进行比较,结果表明,湘江衡阳段沉积物中Cd和Pb含量水平对底栖生物具有较大的慢性毒性影响,Cd污染不容忽视.
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| 关 键 词： | 湘江衡阳段 重金属 相平衡分配法 沉积物质量基准 沉积物质量评价 |
| 收稿时间： | 6/8/2012 12:00:00 AM |
| 修稿时间： | 2012/11/12 0:00:00 |
Application of Equilibrium Partitioning Approach to Establish Sediment Quality Criteria for Heavy Metals in Hengyang Section of Xiangjiang River |
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| HAN Chao-nan,QIN Yan-wen,ZHENG Bing-hui,ZHANG Lei and CAO Wei.Application of Equilibrium Partitioning Approach to Establish Sediment Quality Criteria for Heavy Metals in Hengyang Section of Xiangjiang River[J].Chinese Journal of Environmental Science,2013,34(5):1715-1724. |
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| Authors: | HAN Chao-nan QIN Yan-wen ZHENG Bing-hui ZHANG Lei and CAO Wei |
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| Affiliation: | State Environmental Protection Key Laboratory of Estuary and Coastal Environment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;State Environmental Protection Key Laboratory of Estuary and Coastal Environment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;State Environmental Protection Key Laboratory of Estuary and Coastal Environment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;State Environmental Protection Key Laboratory of Estuary and Coastal Environment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China;State Environmental Protection Key Laboratory of Estuary and Coastal Environment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China |
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| Abstract: | |
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| Keywords: | Hengyang section of Xiangjiang River heavy metal the equilibrium partition(EqP) approach sediment quality criteria sediment quality assessment |
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