Ecological risk assessment of heavy metals in sediments of Xiawan Port based on modified potential ecological risk index

被引：181
|
作者：
Zhu Hui-na [1 ,2 ]
Yuan Xing-zhong [1 ,2 ]
Zeng Guang-ming [1 ,2 ]
Jiang Min [1 ,2 ]
Liang Jie [1 ,2 ]
Zhang Chang [1 ,2 ]
Yin Juan [3 ]
Huang Hua-jun [1 ,2 ]
Liu Zhi-feng [1 ,2 ]
Jiang Hong-wei [1 ,2 ]
机构：
[1] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China
[2] Hunan Univ, Key Lab Environm Biol & Pollut Control, Minist Educ, Changsha 410082, Hunan, Peoples R China
[3] Guangxi Univ Finance & Econ, Dept Business Adm, Nanning 530003, Peoples R China
来源：
TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA | 2012年 / 22卷 / 06期
基金：
中国国家自然科学基金;
关键词：
heavy metals; chemical speciation; modified potential ecological risk index; sediments; Xiawan Port; SEQUENTIAL EXTRACTION; RIVER SEDIMENTS; BAY SEDIMENTS; CHINA; POLLUTION; FRACTIONATION; SPECIATION; INDIA; AREA; SOIL;
D O I：
10.1016/S1003-6326(11)61343-5
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
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.
引用
收藏
页码：1470 / 1477
页数：8
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