Measurement of persistent organic pollutants (POPs) in plastic resin pellets from remote islands: Toward establishment of background concentrations for International Pellet Watch
Measurement of persistent organic pollutants (POPs) in plastic resin pellets from remote islands: Toward establishment of background concentrations for International Pellet Watch
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DOI：
10.1016/j.marpolbul.2011.11.004
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发表时间：
2012-02-01
影响因子：
5.8
通讯作者：
Mermoz, Jorge
中科院分区：
文献类型：
--
作者：
Heskett, Marvin;Takada, Hideshige;Mermoz, Jorge
从太平洋偏远岛屿收集的塑料树脂颗粒。对大西洋、印度洋和加勒比海中的多氯联苯、二氯二苯基三氯乙烷及其降解产物和六氯环己烷进行了分析。颗粒中的多氯联苯浓度（13种同系物之和）为0.1-9.9纳克/克颗粒。这些是1-3个数量级小于从工业化沿海海岸的颗粒中观察到的。颗粒中滴滴涕的浓度为0.8-4.1纳克/克颗粒。六氯环己烷的浓度为0.6-1.7纳克/克颗粒，但圣赫勒拿岛的浓度为19.3纳克/克颗粒，目前使用的林丹可能对圣赫勒拿岛产生了影响。这项研究为国际颗粒监测提供了持久性有机污染物的背景水平（多氯联苯< 10纳克/克颗粒，滴滴涕< 4纳克/克颗粒，六氯环己烷< 2纳克/克颗粒）。在偏远岛屿的一些颗粒样品中发现了零星的高浓度持久性有机污染物，在今后评估塑料碎片上的污染物时应予以考虑。(C)2011爱思唯尔有限公司保留所有权利。
Plastic resin pellets collected from remote islands in the Pacific. Atlantic, and Indian Oceans and the Caribbean Sea were analyzed for polychlorinated biphenyls (PCBs), dichloro-diphenyltrichloroethane and its degradation products (DDTs), and hexachlorocyclohexanes (HCHs). Concentrations of PCBs (sum of 13 congeners) in the pellets were 0.1-9.9 ng/g-pellet. These were 1-3 orders of magnitude smaller than those observed in pellets from industrialized coastal shores. Concentrations of DDTs in the pellets were 0.8-4.1 ng/g-pellet. HCH concentrations were 0.6-1.7 ng/g-pellet, except for 19.3 ng/g-pellet on St. Helena, where current use of lindane is likely influence. This study provides background levels of POPs (PCBs < 10 ng/g-pellet, DDTs < 4 ng/g-pellet, HCHs < 2 ng/g-pellet) for International Pellet Watch. Sporadic large concentrations of POPs were found in some pellet samples from remote islands and should be considered in future assessments of pollutants on plastic debris. (C) 2011 Elsevier Ltd. All rights reserved.