期刊
MARINE POLLUTION BULLETIN
卷 110, 期 1, 页码 596-602出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.marpolbul.2016.05.079
关键词
Heavy metals; Surface sediment; Environmental assessment; Yellow Sea; Bohai Sea
资金
- National Key Basic Research Program of China [2013CB429701]
- National Natural Science Foundation of China [41576058, 41206049]
- China Geological Survey [GZH200800501, 1212011220113]
A total of 141 surface sediments were collected and analyzed for their geochemistry, total organic carbon, and grain size to assess the heavy metal pollution in the Bohai and Yellow Seas. The enrichment factor (EF) and geoaccumulation index (I-geo) of Cu, Pb, Zn, Cr, Cd, Ni, As, and Hg were calculated to assess anthropogenic contamination, and the results suggest that moderate Pb, Cd, and As contamination occurs in the study area. Sediment quality guidelines were applied to assess the adverse biological effects of these metals. The spatial distribution of the mean Effects Range-Median quotient for the vast majority of the study area is between 0.1 and 0.5, indicating low impact and potential negative biological effects. Multivariate analysis indicates that Cu, Pb, Zn, Cr, and Ni resulted primarily from lithogenic sources, whereas As, Cd, and Hg were mainly attributed to anthropogenic sources. (C) 2016 Elsevier Ltd. All rights reserved.
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