文献类型：期刊文章

作　　者：祝慧娜[1,2] 袁兴中[1,2] 曾光明[1,2] 蒋敏[1,2] 梁婕[1,2] 张长[1,2] 尹娟[3] 黄华军[1,2] 刘智峰[1,2] 江洪炜[1,2]

机构地区：[1]湖南大学环境科学与工程学院,长沙410082 [2]环境生物与控制教育部重点实验室(湖南大学),长沙410082 [3]广西财经学院工商管理系,南宁530003

出　　处：《Transactions of Nonferrous Metals Society of China》

基　　金：Projects (51039001, 50978087, 51009063, 50808071) supported by the National Natural Science Foundation of China;Project (SX2010-026) supported by State Council Three Gorges Project Construction Committee Executive Office,China;Project (2009ZX07212-001) supported by Ministry of Environmental Protection of China;Project (BYHGLC-2010-02) supported by Guangzhou Water Authority,China;Project (CX2010B157) supported by Hunan Provincial Innovation Foundation for Postgraduate,China

年　　份：2012

卷　　号：22

期　　号：6

起止页码：1470-1477

语　　种：中文

收录情况：AJ、CAS、CSA、CSA-PROQEUST、CSCD、CSCD2011_2012、EI、INSPEC、JST、SCI(收录号：WOS:000306275100031)、SCI-EXPANDED(收录号：WOS:000306275100031)、SCIE、SCOPUS、WOS、ZGKJHX、普通刊

摘　　要：Modified potential ecological risk index （MRI） was proposed based on the potential ecological risk index （RI） and risk assessment code （RAC） by modifying an index. The modified index was relevant to the chemical speciation of heavy metals. Xiawan Port, a typical region contaminated by industrial production, was selected as a case study area. The total concentrations and chemical speciation of heavy metals in sediments of Xiawan Port were analyzed. The experimental data indicate that Xiawan Port is seriously polluted by heavy metals, especially by Cd. The risks of heavy metals are evaluated by RI, RAC and MRI, respectively. The resluts of MRI show that the risks of heavy metals are in the decreasing order of Cd〉Pb〉Cu〉Zn. Comparison of results by different methods reveals that MRI integrates the characters of RI and RAC. MRI is recognized to be useful for risk managemnt of heavy metals in sediments.

关 键 词：heavy metals  chemical speciation  modified potential ecological risk index  SEDIMENTS Xiawan Port  

分 类 号：X820.4]