| Literature DB >> 24816867 |
Huiting Xie1, Ji Li, Chengzhong Zhang, Zhenyu Tian, Xin Liu, Chen Tang, Ying Han, Wenbin Liu.
Abstract
Eight important heavy metals (As, Cr, Cu, Ni, Pb, Zn, Mn, and Hg) were investigated in surface soil samples collected from the Lhasa-Shigatse-Nam Co region, Tibetan Plateau, China. The mean contents of As, Cr, Cu, Ni, Pb, Zn, Mn, and Hg in the samples were 39.5, 57.4, 28.5, 48.2, 15.7, 79.2, 637 and 0.0175 mg/kg, respectively. All metals were divided into three clusters by cluster analysis. The results of geoaccumulation index indicated that no samples were polluted by Cr, Pb, Zn, and Mn, and samples were polluted with As, Cu, Ni, and Hg to different degrees. All surface soils had a low ecological risk with potential ecological risk index below 150, indicating a low ecological risk. As, Pb, and Hg were the primary contributors to potential ecological risk.Entities:
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Year: 2014 PMID： 24816867 DOI： 10.1007/s00128-014-1288-4
Source DB: PubMed Journal: Bull Environ Contam Toxicol ISSN： 0007-4861 Impact factor: 2.151