文献类型： 外文期刊

作者： Wei Zhiyuan ¹ ; Wang Dengfeng ¹ ; Zhou Huiping ² ; Qi Zhiping ¹ ;

作者机构： 1.Chinese Acad Trop Agr Sci, Minist Agr, Trop Crops Genet Resources Inst, Danzhou 571737, Peoples R China

2.Nanjing Inst Environm Sci, Minist Environm Protect, Jiangwangmiao St 8, Nanjing, Peoples R China

关键词： Heavy metals;Contamination;Geoaccumulation index;Principal component analysis;Assessment;Dexing

期刊名称：2011 3RD INTERNATIONAL CONFERENCE ON ENVIRONMENTAL SCIENCE AND INFORMATION APPLICATION TECHNOLOGY ESIAT 2011, VOL 10, PT C

ISSN： 1878-0296

年卷期： 2011 年 10 卷

页码：

收录情况： SCI

摘要： The assessment of pollution levels of heavy metals soil contamination is significant to human health and environmental management. The purpose of this article is to apply two methods, which are Principal component analysis (PCA) and Geoaccumulation index (I-geo), to assess heavy metals contamination levels in the area around copper mine tailing, and to compare the results with Hakanson potential ecological risk index techniques (RI). The rank of soil Cd pollution levels, which is assessed using I-geo, is consistent with the one by RI, while the PCA assessments result of comprehensive contamination level in soil discrepancy with RI and I-geo. PCA concerned with the distribution of all elements in soil, while I-geo and RI are mainly determined by the elements with high concentration or big Toxic Response Factor value. The combined application of PCA and I-geo can effectively identify the comprehensive and single pollution levels of elements in soil, thus important to the extent determination of heavy metals pollution in soil. (C) 2011 Published by Elsevier Ltd. Selection and/or peer-review under responsibility of Conference ESIAT2011 Organization Committee.