Multi-trace element levels and arsenic speciation in urine of e-waste recycling workers from Agbogbloshie, Accra in Ghana
Multi-trace element levels and arsenic speciation in urine of e-waste recycling workers from Agbogbloshie, Accra in Ghana
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DOI：
10.1016/j.scitotenv.2012.02.072
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发表时间：
2012-05-01
影响因子：
9.8
通讯作者：
Tanabe, Shinsuke
中科院分区：
文献类型：
--
作者：
Asante, Kwadwo Ansong;Agusa, Tetsuro;Tanabe, Shinsuke
为了解加纳阿克拉阿博布罗希电子废弃物（e-waste）回收场中多种微量元素（TE）对人体的污染情况，本研究分析了电子废弃物回收工人尿液中TE和As的形态。在考虑年龄的相互作用后，电子废物回收工人的尿液中的Fe，Sb和Pb的浓度显着高于参考网站，表明回收工人通过回收活动暴露于这些TE。尿砷浓度相对较高，而饮水中砷浓度较低。砷在人体尿液中的形态分析表明，砷甜菜碱和二甲基胂酸是主要的砷的物种和浓度的两种物种的总砷浓度呈正相关，以及彼此之间。这些结果表明，这些化合物可能来自相同的来源，可能是鱼类和贝类，并大大影响作为暴露水平。据我们所知，这是关于加纳原始回收电子废物造成的人类污染的第一项研究。这项研究将有助于了解人类暴露于微量元素的电子废物网站在一个工业化程度较低的地区，迄今很少在文献中报道。(c)2012 Elsevier B. V.保留所有权利。
To understand human contamination by multi-trace elements (TEs) in electrical and electronic waste (e-waste) recycling site at Agbogbloshie, Accra in Ghana, this study analyzed TEs and As speciation in urine of e-waste recycling workers. Concentrations of Fe, Sb, and Pb in urine of e-waste recycling workers were significantly higher than those of reference sites after consideration of interaction by age, indicating that the recycling workers are exposed to these TEs through the recycling activity. Urinary As concentration was relatively high, although the level in drinking water was quite low. Speciation analysis of As in human urine revealed that arsenobetaine and dimethylarsinic acid were the predominant As species and concentrations of both species were positively correlated with total As concentration as well as between each other. These results suggest that such compounds may be derived from the same source, probably fish and shellfish and greatly influence As exposure levels. To our knowledge, this is the first study on human contamination resulting from the primitive recycling of e-waste in Ghana. This study will contribute to the knowledge about human exposure to trace elements from an e-waste site in a less industrialized region so far scantly covered in the literature. (c) 2012 Elsevier B.V. All rights reserved.