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Perfluorinated compounds in the Antarctic region: Ocean circulation provides prolonged protection from distant sources

机译:南极地区的全氟化合物:海洋环流提供长期保护,免受遥远的污染

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摘要

In order to investigate the extent to which Perfluorinated Contaminants (PFCs) have permeated the Southern Ocean food web to date, a range of Antarctic, sub-Antarctic and Antarctic-migratory biota were analysed for key ionic PFCs.rnBased upon the geographical distribution pattern and ecology of biota with detectable vs. non-detectable PFC burdens, an evaluation of the potential contributory roles of alternative system input pathways is made. Our analytical findings, together with previous reports, reveal only the occasional occurrence of PFCs in migratory biota and vertebrate predators with foraging ranges extending into or north of the Antarctic Circumpolar Current (ACC).rnGeographical contamination patterns observed correspond most strongly with those expected from delivery via hydrospheric transport as governed by the unique oceanographic features of the Southern Ocean. We suggest that hydrospheric transport will form a slow, but primary, input pathway of PFCs to the Antarctic region.
机译:为了调查迄今为止全氟化污染物(PFC)渗透到南部海洋食物网的程度,分析了一系列南极,南极和南极迁徙生物区系中的关键离子PFC.rn基于地理分布模式和具有可检测的PFC负担和不可检测的PFC负担的生物区系生态系统,评估了替代系统输入途径的潜在贡献作用。我们的分析发现以及先前的报告仅揭示了在迁徙生物群和脊椎动物捕食者中偶尔发生的PFC,其觅食范围延伸到南极洲极流(ACC)或北部.rn观察到的地理污染模式与交付时的预期最相符经由南部海洋独特的海洋特征所控制的水圈运输。我们建议水圈运输将形成全氟化碳向南极地区缓慢但主要的输入途径。

著录项

  • 来源
    《Environmental pollution》 |2010年第9期|P.2985-2991|共7页
  • 作者单位

    Atmospheric Environment Research Centre (AERC), Griffith University, 170 Kessels Road, Nathan QLD 4111, Australia;

    rnCentre for Australian Weather and Climate Research, Wealth From Oceans Flagship and Antarctic Climate and Ecosystems Cooperative Research Centre, Hobart, TAS, Australia;

    rnThe Australian Antarctic Division, Kingston, TAS, Australia;

    rnThe British Antarctic Survey, Natural Environment Research Council (NERC), Cambridge, England, UK;

    rnThe Australian Antarctic Division, Kingston, TAS, Australia;

    rnThe Australian Antarctic Division, Kingston, TAS, Australia;

    rnNational Environmental Research Institute (NERI), Aarhus University, Roskilde, Denmark;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    perfluorinated compounds; antarctica; long range environmental transport; antarctic circumpolar current;

    机译:全氟化合物;南极洲;远程环境运输;南极环极电流;

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