| 重金属对淡水生物生态风险的物种敏感性分布评估 |
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| 引用本文： | 孔祥臻,何伟,秦宁,何玘霜,王雁,欧阳慧灵,徐福留.重金属对淡水生物生态风险的物种敏感性分布评估[J].中国环境科学,2011,31(9):1555-1562. |
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| 作者姓名： | 孔祥臻 何伟 秦宁 何玘霜 王雁 欧阳慧灵 徐福留 |
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| 作者单位： | 北京大学城市与环境学院,地表过程分析与模拟教育部重点实验室,北京100871 |
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| 基金项目： | 国家“973”项目(2007CB407304); 国家杰出青年基金项目(40725004); 国家水专项(2008ZX07103-005-01); 国家自然科学基金资助项目(41030529); 环境保护部公益项目(20100932); 教育部博士点基金项目(20100001110035) |
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| 摘 要： | 应用生态风险评价中的物种敏感性分布(SSD)方法构建了6种常见重金属元素(Cd,Cu,Hg,Pb,Zn和Mn)对淡水生物的SSD曲线.在此基础上,计算了6种重金属对不同生物的5%危害浓度(HC5)及其不同暴露浓度对生物的潜在影响比例(PAF),比较了脊椎动物和无脊椎动物(包括鱼类,甲壳类等)对6种重金属的敏感性以及不同重金属的急性生态风险(简称生态风险),并且评价了3个典型水体中常见重金属的联合生态风险.结果表明,6种重金属元素的HC5值的大小顺序为Cu
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| 关 键 词： | 重金属元素 淡水生物 生态风险 物种敏感性分布 |
| 收稿时间： | 2011-01-13; |
Assessing acute ecological risks of heavy metals to freshwater organisms by species sensitivity distributions |
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| KONG Xiang-zhen,HE Wei,QIN Ning,HE Qi-shuang,WANG Yan,OUYANG Hui-ling,XU Fu-liu.Assessing acute ecological risks of heavy metals to freshwater organisms by species sensitivity distributions[J].China Environmental Science,2011,31(9):1555-1562. |
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| Authors: | KONG Xiang-zhen HE Wei QIN Ning HE Qi-shuang WANG Yan OUYANG Hui-ling XU Fu-liu |
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| Institution: | KONG Xiang-zhen,HE Wei,QIN Ning,HE Qi-shuang,WANG Yan,OUYANG Hui-ling,XU Fu-liu(Key laboratory for Earth Surface Process,Ministry of Education,College of Urban and Environmental Sciences,Peking University,Beijing 100871,China) |
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| Abstract: | Species sensitivity distributions(SSD) method was used to assess the ecological risk of six heavy metals(Cd,Cu,Hg,Pb,Zn and Mn) to freshwater organisms.The acute toxicity data(LC50 or EC50) were collected from ECOTOX database and SSD curves were fitted based on BurrIII function.The acute ecological risks of the heavy metals and the sensitivity of different freshwater species(vertebrate and invertebrate) to these heavy metals were compared by the hazardous concentrations for 5% of the species(HC5) and the po... |
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| Keywords: | heavy metals freshwater organisms ecological risks species sensitivity distributions(SSD) |
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