Association of metals with plastic production pellets in the marine environment
Association of metals with plastic production pellets in the marine environment
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DOI：
10.1016/j.marpolbul.2010.07.014
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发表时间：
2010-11-01
影响因子：
5.8
通讯作者：
Turner, Andrew
中科院分区：
文献类型：
--
作者：
Ashton, Karen;Holmes, Luke;Turner, Andrew
塑料生产颗粒样品从四个海滩沿着一段海岸线（南德文郡，英格兰西南部）和伴随的，松散的粘附和截留的材料去除超声波进行了分析的主要金属（铝，铁，锰）和微量金属（铜，锌，铅，银，镉，钴，铬，钼，锑，锡，U）酸消化。在大多数情况下，每个研究中心的复合颗粒样品中的金属浓度低于合并外源性物质中的相应浓度，但在一个数量级内。然而，归一化的数据相对于铝显示富集镉和铅在塑料颗粒在两个网站。这些观察结果并不完全是由于粒料与耐超声波处理的精细材料的结合，因为新的聚乙烯粒料在港口中悬浮8周，通过吸附和沉淀从海水中积累金属。这些研究结果的环境影响和潜在的应用进行了讨论。(C)2010爱思唯尔有限公司保留所有权利。
Plastic production pellets sampled from four beaches along a stretch of coastline (south Devon, SW England) and accompanying, loosely adhered and entrapped material removed ultrasonically have been analysed for major metals (Al, Fe, Mn) and trace metals (Cu, Zn, Pb, Ag, Cd, Co, Cr, Mo, Sb, Sn, U) following acid digestion. In most cases, metal concentrations in composite pellet samples from each site were less than but within an order of magnitude of corresponding concentrations in the pooled extraneous materials. However, normalisation of data with respect to Al revealed enrichment of Cd and Pb in plastic pellets at two sites. These observations are not wholly due to the association of pellets with fine material that is resistant to ultrasonication since new polyethylene pellets suspended in a harbour for 8 weeks accumulated metals from sea water through adsorption and precipitation. The environmental implications and potential applications of these findings are discussed. (C) 2010 Elsevier Ltd. All rights reserved.