Antimony speciation and potential ecological risk of metal(loid)s in plain wetlands in the lower Yangtze River valley, China.
作者： Cheng Yao , Xia Jiang , Feifei Che , Kun Wang , Li Zhao
DOI: 10.1016/J.CHEMOSPHERE.2018.11.164
关键词:
摘要: Abstract Increasing attention is being paid to Sb as a primary hazardous substance, and further systematic studies of behavior in freshwater wetlands are required. The plain Lake Taihu basin located lower Yangtze River valley, heavily populated economically developed area China. receive polluted water from point sources (textile printing plants). In this study, speciation was investigated the potential ecological risk 8 metal(loid)s (As, Cd, Cr, Cu, Ni, Pb, Zn, Sb) were assessed. mean concentration 7.03 μg L−1, which consist pentavalent, trivalent, organic dissolved great part that attached suspend solids (SS). Statistical analysis indicated Sb(Ⅲ) SS then oxided Sb(V) accompanied with tailing discharged into wetlands; presence related microorganic eutrophic environment; precipitation dominant factor for distribution bioavailable surficial sediment. toxicity coefficient proposed 10 ambient background set up. 135, low level. As, Cd main contributors risks. threatened by pollution, should be restrict reducing local treatment facilities.
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