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Distribution and Pollution Assessment of Heavy Metals in SurfaceSediments of Intertidal Wetland of Globally Important ShorebirdStopover Sites in Southern Jiangsu Province,China(PDF)

《南京师范大学学报》(自然科学版)[ISSN:1001-4616/CN:32-1239/N]

Issue:
2017年01期
Page:
86-
Research Field:
·数学与计算机科学·
Publishing date:

Info

Title:
Distribution and Pollution Assessment of Heavy Metals in SurfaceSediments of Intertidal Wetland of Globally Important ShorebirdStopover Sites in Southern Jiangsu Province,China
Author(s):
Ge Xiaohui1Hu Dongfang1Chen Jianqin2Liu Wei1Zhang Yi1Hu Chaochao1Chang Qing1
(1.School of Life Sciences,Nanjing Normal University,Nanjing 210023,China)(2.School of Life Science and Chemical Engineering,Jiangsu Second Normal University,Nanjing 210013,China)
Keywords:
shorebird stopover sitesurface sedimentheavy metalsdistributionpollution assessmentsource
PACS:
Q958
DOI:
10.3969/j.issn.1001-4616.2017.01.013
Abstract:
Total of 36 surface sediment samples were collected from 18 sampling sites of intertidal zone,and the distribution,contamination and source of heavy metals in the globally important shorebirds stopover sites of south Jiangsu were investigated. The results showed that the average content of heavy metals were Zn>Pb>As>Cu>Cr>Cd>Hg both in spring and autumn,and there were no significant differences in the contents of heavy metals,except for As and Hg in different season,Cu and Zn in different intertidal zones,and Cd in different transects. The geoaccumulation index assessment indicated that the pollution status was Cd>Pb>As>Cu>Zn>Cr>Hg in spring,and Cd>As>Pb>Cu>Zn>Hg>Cr in autumn. The potential ecological risk index indicated that As,Pb,Cu,Hg,Zn and Cr were all at the low ecological risk level,and Cd was at slightly high level. The principal component analysis indicated that the heavy metals mainly came from industrial emissions of the Rudong Economic Development Zone,motor vehicle exhaust and the ship pollution emissions of the local fishing ports.

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