PCBs and PBDEs in microplastic particles and zooplankton in open water in the Pacific Ocean and around the coast of Japan
PCBs and PBDEs in microplastic particles and zooplankton in open water in the Pacific Ocean and around the coast of Japan
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DOI：
10.1016/j.marpolbul.2019.110806
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发表时间：
2020-02-01
影响因子：
5.8
通讯作者：
Trenholm, Nicole
中科院分区：
文献类型：
--
作者：
Yeo, Bee Geok;Takada, Hideshige;Trenholm, Nicole
对在太平洋和日本沿海27个地点的地表水中收集的微塑料和浮游动物中的多氯联苯和多溴二苯醚进行了调查。多氯联苯和多溴二苯醚都存在于漂浮的微塑料中，甚至在0.315-1毫米的较小颗粒中也是如此。Sigma 13多氯联苯的浓度为0.04-124纳克/克，在东京湾等城市海湾地区更高。在城市-近海和农村-近海两个地点都观察到了零星的中等至高浓度的多溴二苯醚，主要由溴化程度较高的同系物组成。在后者中，BDE 209的浓度范围为未检出到2，158纳克/克。微塑料与浮游动物的丰度比阈值对于多氯联苯为0.6，对于多溴联苯醚为0.08，高于该阈值，微塑料的暴露量将大于浮游动物的暴露量。
PCBs and PBDEs in microplastics and zooplankton collected in surface water at 27 locations in the Pacific Ocean and around the coast of Japan were investigated. Both PCBs and PBDEs were observed in buoyant microplastics, even in smaller particles of 0.315-1 mm. Concentrations of Sigma 13 PCBs were 0.04-124 ng/g, and were higher in urban bay areas such as Tokyo Bay. Sporadic moderate to high concentrations of PBDEs were observed in both urban-offshore and rural-offshore locations, consisting mostly of higher-brominated congeners. From the latter, BDE 209 ranged from not detected to 2158 ng/g. The microplastic-to-zooplankton abundance ratio threshold was 0.6 for PCBs and 0.08 for PBDEs, above which exposure would be greater from microplastics than from zooplankton.