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首页> 美国卫生研究院文献>International Journal of Environmental Research and Public Health >Environmental Heavy Metal Contamination from Electronic Waste (E-Waste) Recycling Activities Worldwide: A Systematic Review from 2005 to 2017
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Environmental Heavy Metal Contamination from Electronic Waste (E-Waste) Recycling Activities Worldwide: A Systematic Review from 2005 to 2017

机译：来自电子废物（电子废物）回收活动的环境重金属污染：2005年至2017年的系统审查

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The recycling of electronic waste (e-waste) contaminates ecosystems with metals, though a compilation of data from across sites worldwide is lacking, without which evidence-based comparisons and conclusions cannot be realized. As such, here, a systematic review of the literature was conducted to identify peer-reviewed studies concerning e-waste sites (published between 2005 and 2017) that reported on the concentration of heavy metals (Cd, Hg, As, Pb and Cr) in soil, water and sediment. From 3063 papers identified, 59 studies from 11 countries meeting predefined criteria were included. Reported metal concentrations were summarized, and a narrative synthesis was performed. This review summarized 8286 measurements of the aforementioned metals in soils (5836), water (1347) and sediment (1103). More than 70% of the studies were conducted in Asia. In nearly all cases, the average metal concentrations in a particular medium from a given site were above guideline values; suggesting soils, water and sediment at, or near, e-waste recycling sites are contaminated. Across all media, concentrations of Pb were generally highest, followed by Cr, As, Cd and Hg. The synthesized information demonstrates that e-waste sites worldwide are contaminated with metals, that geographic data gaps exist, that the quality of most studies can be improved and that action is needed to help reduce such levels to protect human health and the environment.
机译：电子废物（电子废物）的再循环污染了与金属的生态系统，尽管缺乏全球跨地网站的数据汇编，但没有任何基于循证的比较和结论。因此，在这里，进行了对文献的系统审查，以鉴定关于关于电子废物位点的同行评审研究（于2005年至2017年间发布），报告的重金属浓度（CD，Hg，As，Pb和Cr）在土壤，水和沉积物中。从3063篇题称中，包括来自11个国家的59项符合预定义标准的研究。总结了报告的金属浓度，进行叙事合成。本综述总结了8286次上述土壤中的金属（5836），水（1347）和沉积物（1103）。超过70％的研究是在亚洲进行的。在几乎所有情况下，来自给定部位的特定培养基中的平均金属浓度高于准则值;暗示土壤，水和沉积物，或接近E废料回收位点被污染。在所有培养基中，PB的浓度通常最高，然后是Cr，As，Cd和Hg。合成的信息表明，全球的电子废物场地被金属污染，即存在地理数据差距，可以提高大多数研究的质量，需要采取行动来帮助减少这些水平以保护人类健康和环境。

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