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首页> 美国卫生研究院文献>Springer Open Choice >A device-specific prioritization strategy based on the potential for harm to human health in informal WEEE recycling
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A device-specific prioritization strategy based on the potential for harm to human health in informal WEEE recycling

机译：一种基于设备的优先级排序策略该策略基于非正式WEEE回收中对人体健康的潜在危害

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摘要

In developing countries, the recovery of valuable materials from Waste Electrical and Electronic Equipment (WEEE) is carried out via uncontrolled practices, posing potentially severe risks both to human health and the environment. The assessment of the risk, which depends on both the kind and hazardous properties of the substances contained in WEEE, is currently limited as the exposure scenario for the single informal practice cannot be fully characterized for this purpose. In this context, this work proposes and evaluates a strategy to identify the relative potential harm of different kinds of WEEE by their content in metals, selected as the target substances of concern. This was based on the individual metal content, primarily located in the printed circuit boards (PCBs) of the different devices. The metal composition of the individual PCBs was identified and the dominant unregulated metal recovery practices were reviewed to identify the most suitable parameter to express the toxicity of these metals. Based on a mass-normalized cumulative toxicity, via the inhalation route, individual components were assessed from compositional variation found in the literature. The results is a semiquantitative ranking of individual components, revealing significant differences in potential harm posed by different electronic appliances and an opportunity to provide prioritization strategies in future management.
机译：在发展中国家，通过不加控制的做法从废弃电子电气设备（WEEE）中回收有价值的材料，对人类健康和环境都可能构成严重的风险。目前，对风险的评估取决于WEEE中所含物质的种类和危险性，目前这一评估受到限制，因为单个非正式实践的暴露场景无法为此目的而充分表征。在这种情况下，这项工作提出并评估了一种策略，该策略可通过将各种WEEE的金属含量（被选为关注的目标物质）识别出来来识别其相对潜在危害。这是基于单独的金属含量，主要位于不同设备的印刷电路板（PCB）中。确定了各个PCB的金属成分，并审查了主要的不受管制的金属回收方法，以确定最合适的参数来表达这些金属的毒性。基于质量归一化的累积毒性，通过吸入途径，从文献中发现的组成变化中评估了各个成分。结果是单个组件的半定量排名，揭示了不同电子设备在潜在危害方面的显着差异，并提供了在未来管理中提供优先策略的机会。

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