...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Environmental Science & Technology >Effects of Microplastic on Fitness and PCB Bioaccumulation by the Lugworm Arenicola marina (L.)
【24h】

Effects of Microplastic on Fitness and PCB Bioaccumulation by the Lugworm Arenicola marina (L.)

机译：微塑料对on虫（Lugworm Arenicola marina）（L。）的适应性和PCB生物积累的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

It has been speculated that marine microplastics may cause negative effects on benthic marine organisms and increase bioaccumulation of persistent organic pollutants (POPs). Here, we provide the first controlled study of plastic effects on benthic organisms including transfer of POPs. The effects of polystyrene (PS) microplastic on survival, activity, and bodyweight, as well as the transfer of 19 polychlorinated biphenyls (PCBs), were assessed in bioassays with Arenicola marina (L.). PS was pre-equilibrated in natively contaminated sediment. A positive relation was observed between microplastic concentration in the sediment and both uptake of plastic particles and weight loss by A marina. Furthermore, a reduction in feeding activity was observed at a PS dose of 7.496 dry weight. A low PS dose of 0.074% increased bioaccumulation of PCBs by a factor of 1.1-3.6, an effect that was significant for ∑PCBs and several individual congeners. At higher doses, bioaccumulation decreased compared to the low dose, which however, was only significant for PCB10S. PS had statistically significant effects on the organisms' fitness and bioaccumulation, but the magnitude of the effects was not high. This may be different for sites with different plastic concentrations, or plastics with a higher affinity for POPs.
机译：据推测，海洋微塑料可能对底栖海洋生物造成负面影响，并增加持久性有机污染物（POPs）的生物积累。在这里，我们提供了对底栖生物（包括POPs转移）塑性影响的首次对照研究。在用Arenicola marina（L.）进行的生物测定中，评估了聚苯乙烯（PS）微塑料对存活，活性和体重以及19种多氯联苯（PCB）转移的影响。 PS已在天然污染的沉积物中进行了预平衡。观察到沉积物中的微塑性浓度与塑料颗粒的吸收和A码头的重量减轻之间存在正相关关系。此外，在PS剂量为7.496干重时观察到摄食活性降低。 0.074％的低PS剂量将PCB的生物蓄积提高了1.1-3.6倍，这对∑PCB和几个单独的同类物而言是显着的。与低剂量相比，高剂量时生物蓄积减少，但这仅对PCB10S有意义。 PS对生物体的适应性和生物蓄积具有统计学意义的影响，但影响的程度并不高。对于塑料浓度不同或对POPs具有更高亲和力的塑料而言，情况可能有所不同。

著录项

  • 来源
    《Environmental Science & Technology》 |2013年第1期|593-600|共8页
  • 作者

    Ellen Besseling; Anna Wegner; Edwin M. Foekema; Martine J. van den Heuvel-Greve; Albert A. Koelmans;

  • 作者单位

    Aquatic Ecology and Water Quality Management Group, Department of Environmental Sciences, Wageningen University, P.O. Box 47, 6700 AA Wageningen, The Netherlands;

    Aquatic Ecology and Water Quality Management Group, Department of Environmental Sciences, Wageningen University, P.O. Box 47, 6700 AA Wageningen, The Netherlands;

    IMARES-Institute for Marine Resources & Ecosystem Studies, Wageningen UR, P.O. Box 68, 1970 AB IJmuiden, The Netherlands;

    IMARES-Institute for Marine Resources & Ecosystem Studies, Wageningen UR, P.O. Box 68, 1970 AB IJmuiden, The Netherlands;

    Aquatic Ecology and Water Quality Management Group, Department of Environmental Sciences, Wageningen University, P.O. Box 47, 6700 AA Wageningen, The Netherlands,IMARES-Institute for Marine Resources & Ecosystem Studies, Wageningen UR, P.O. Box 68, 1970 AB IJmuiden, 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);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号