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题名: Occurrence, bioaccumulation and long-range transport of short-chain chlorinated paraffins on the Fildes Peninsula at King George Island, Antarctica
作者: Li, Huijuan; Fu, Jianjie; Zhang, Aigian; Zhang, Qinghua; Wang, Yawei
刊名: ENVIRONMENT INTERNATIONAL
出版日期: 2016-09
卷号: 94, 期号:0, 页码:408-414
关键词: Short-chain chlorinated paraffins (SCCPs) ; Antarctica ; Biomagnification ; Long-range transport
DOI: 10.1016/j.envint.2016.05.005
部门归属: 环境化学与生态毒理学国家重点实验室
英文摘要: As a candidate persistent organic pollutant of the Stockholm Convention, short-chain chlorinated paraffins (SCCPs) have recently received particular attention. In this study, we investigated, for the first time, the concentrations of SCCPs in biota samples collected from the Fildes Peninsula at King George Island and Ardley Island, Antarctica. The concentrations of SCCPs ranged from 3.5 to 256.6 dg/g (dry weight, dw), with a mean of 76.6 +/- 61.8 ng/g dw, which was lower than those detected in mid- and low-latitude regions. The long-range transport behaviour of SCCPs was confirmed by both the detection of SCCPs in Antarctic remote areas and their special congener profiles. Short carbon chain (C-10) congeners predominated in the Antarctic samples, which accounted for 56.1% of the total SCCP contamination. Such enrichment of C-10 congeners indicated the high potential for the long-range transport of shorter chain congeners. In addition, SCCPs tended to be enriched in the species with high lipid contents. The biomagnification potential of SCCPs was found between Archeogastropoda (Agas) and Neogastropoda (Ngas), and the biomagnification factors of shorter chain congeners of SCCPs were higher than that of the longer chain ones. Considering that the endemic species in polar regions may be sensitive and vulnerable to the adverse effects of environmental contaminants, more attention should be paid on the bioaccumulation and toxicological risks of SCCPs.in polar environments. (C) 2016 Published by Elsevier Ltd.
收录类别: SCI
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内容类型: 期刊论文
URI标识: http://ir.rcees.ac.cn/handle/311016/35911
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