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Pollutants in Plastics within the North Pacific Subtropical Gyre

机译:北太平洋亚热带环流中塑料中的污染物

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src="http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/esthag/2018/esthag.2018.52.issue-2/acs.est.7b04682/20180111/images/medium/es-2017-04682t_0004.gif">Here we report concentrations of pollutants in floating plastics from the North Pacific accumulation zone (NPAC). We compared chemical concentrations in plastics of different types and sizes, assessed ocean plastic potential risks using sediment quality criteria, and discussed the implications of our findings for bioaccumulation. Our results suggest that at least a fraction of the NPAC plastics is not in equilibrium with the surrounding seawater. For instance, “hard plastic” samples had significantly higher PBDE concentrations than “nets and ropes” samples, and 29% of them had PBDE composition similar to a widely used flame-retardant mixture. Our findings indicate that NPAC plastics may pose a chemical risk to organisms as 84% of the samples had at least one chemical exceeding sediment threshold effect levels. Furthermore, our surface trawls collected more plastic than biomass (180 times on average), indicating that some NPAC organisms feeding upon floating particles may have plastic as a major component of their diets. If gradients for pollutant transfer from NPAC plastic to predators exist (as indicated by our fugacity ratio calculations), plastics may play a role in transferring chemicals to certain marine organisms.
机译:src =“ http://pubs.acs.org/appl/literatum/publisher/achs/journals/content/esthag/2018/esthag.2018.52.issue-2/acs.est.7b04682/20180111/images/medium /es-2017-04682t_0004.gif“>在这里,我们报告了北太平洋堆积区(NPAC)漂浮的塑料中的污染物浓度。我们比较了不同类型和尺寸的塑料中的化学浓度,使用沉积物质量标准评估了海洋塑料的潜在风险,并讨论了我们的发现对生物蓄积性的影响。我们的结果表明,至少有一部分NPAC塑料与周围的海水不平衡。例如,“硬塑料”样品的PBDE浓度明显高于“网和绳索”样品,其中29%的PBDE组成与广泛使用的阻燃剂混合物相似。我们的发现表明,NPAC塑料可能对生物体构成化学危险,因为84%的样品中至少有一种化学物质超过了沉积物阈值影响水平。此外,我们的表面拖网收集的塑料多于生物质(平均为180倍),这表明一些以漂浮颗粒为食的NPAC生物可能将塑料作为其饮食的主要成分。如果存在从NPAC塑料到捕食者的污染物转移梯度(如我们的逸度比计算所示),则塑料可能在将化学物质转移到某些海洋生物中发挥作用。

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  • 来源
    《Environmental Science & Technology》 |2018年第2期|446-456|共11页
  • 作者单位

    The Ocean Cleanup Foundation, Martinus Nijhofflaan 2, 2624 ES Delft, The Netherlands,Department of Ecosystem Analysis, Institute for Environmental Research, ABBt − Aachen Biology and Biotechnology, RWTH Aachen University, 1 Worringerweg, 52074 Aachen, Germany,State Key Laboratory of Estuarine and Coastal Research, East China Normal University, 3663 Zhongshan N. Road, 200062 Shanghai, P.R. China;

    The Ocean Cleanup Foundation, Martinus Nijhofflaan 2, 2624 ES Delft, The Netherlands;

    The Ocean Cleanup Foundation, Martinus Nijhofflaan 2, 2624 ES Delft, The Netherlands,School of Civil Engineering and Surveying, Faculty of Technology, University of Portsmouth, Portland Building, Portland Street, Portsmouth, PO1 3AH, United Kingdom;

    Wageningen Marine Research, Wageningen University & Research, P.O. Box 68, 1970 AB IJmuiden, The Netherlands;

    Wageningen Marine Research, Wageningen University & Research, P.O. Box 68, 1970 AB IJmuiden, The Netherlands;

    Instituto de Oceanografia, Universidade Federal do Rio Grande, Rio Grande, Brazil;

    The Ocean Cleanup Foundation, Martinus Nijhofflaan 2, 2624 ES Delft, The Netherlands;

    The Ocean Cleanup Foundation, Martinus Nijhofflaan 2, 2624 ES Delft, The Netherlands;

    The Ocean Cleanup Foundation, Martinus Nijhofflaan 2, 2624 ES Delft, The Netherlands;

    The Ocean Cleanup Foundation, Martinus Nijhofflaan 2, 2624 ES Delft, The Netherlands;

    State Key Laboratory of Yangtze River Water Environment, College of Environmental Science and Engineering, Tongji University, 1239 Siping Road, 200092 Shanghai, P.R. China;

    Department of Ecosystem Analysis, Institute for Environmental Research, ABBt − Aachen Biology and Biotechnology, RWTH Aachen University, 1 Worringerweg, 52074 Aachen, Germany;

    Wageningen Marine Research, Wageningen University & Research, P.O. Box 68, 1970 AB IJmuiden, The Netherlands,Aquatic Ecology and Water Quality Management Group, Department of Environmental Sciences, Wageningen University & Research, P.O. Box 47, 6700 AA Wageningen, The Netherlands;

  • 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);
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