Trace elements in microplastics in Cartagena: A hotspot for plastic pollution at the Caribbean
Trace elements in microplastics in Cartagena: A hotspot for plastic pollution at the Caribbean
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DOI：
10.1016/j.marpolbul.2018.12.016
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发表时间：
2019-02-01
影响因子：
5.8
通讯作者：
Olivero-Verbel, Jesus
中科院分区：
文献类型：
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作者：
Acosta-Coley, Isabel;Mendez-Cuadro, Dario;Olivero-Verbel, Jesus
微塑料是一种新的污染物，被认为是全球海洋的一个担忧来源。这项研究报告了从加勒比海工业化城市卡塔赫纳的海滩上收集的微塑料中微量金属的浓度。汞（Hg）进行了量化，使用汞分析仪和47个微量元素进行了评估，ICP/MS。最丰富的微塑料在海滩是那些与较低程度的表面降解功能（SDF），归类为白色新的聚乙烯颗粒，其次是二次微塑料（SM）。更大的汞含量被发现在SM，白色降解（WDP）和黑色颗粒。微量元素的浓度与SDF的程度登记在检查丸，WDP中的浓度较大。与白新球团相比，Ba、Cr、Rb、Sr、Ce、Zr、Ni、Pb是白新球团中富集最多的元素，因为它们的表面增强了吸附过程。微塑料污染是一种毒理学危害，因为它能够积累和运输有毒元素。
Microplastics are new pollutants considered a source of concern for the oceans worldwide. This research reports the concentrations of trace metals on microplastics collected on beaches from Cartagena, an industrialized city in the Caribbean. Mercury (Hg) was quantified using a Hg analyzer and forty-seven trace elements were assessed by ICP/MS. Most abundant microplastics in beaches were those with the lower degree of surface degradation features (SDF), categorized as white-new polyethylene pellets, followed by secondary microplastics (SM). Greater Hg levels were found in SM, white-degraded (WDP) and black pellets. Trace elements concentrations were linked to the degree of SDF registered in examined pellets, with larger concentrations in WDP. Compared to white-new pellets, Ba, Cr, Rb, Sr, Ce, Zr, Ni, Pb were the most accumulated elements in WDP, as their surface enhance the sorption processes. Microplastic pollution represents a toxicological hazard because its ability to accumulate and transport toxic elements.