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标准化电子废物拆卸活动造成的重金属污染:污染指数,风险评估和干预措施

Kaihan Cai¹, Xi He², Li Wang²

¹National Observation and Research Station of Coastal Ecological Environments in Macao, Macao Environmental Research Institute, Faculty of Innovation Engineering, Macau University of Science and Technology, 999078, Macao; Macao Institute of Systems Engineering, Macau University of Science and Technology, 999078, Macao.

Journal of hazardous materials

|December 5, 2024

概括

这项研究评估了电子废物拆卸工厂 (EDP) 中的重金属 (HM) 污染和暴露风险. 结果表明HM污染和潜在的健康风险,尽管Cr (VI) 计算可能高估了风险. 改善工人的行为可以减少暴露.

科学领域:

环境科学环境科学
职业健康职业健康职业健康
毒理学毒理学毒理学

背景情况:

电子废物回收利用由于复杂性和技术限制而存在挑战.
电子废物拆卸厂 (EDP) 的重金属 (HM) 污染问题越来越令人担忧.
标准化回收工艺可能会无意中导致环境污染.

研究的目的:

调查重金属污染特征和南中国电力发电厂的表面尘埃暴露风险.
用 (Cr) 的价值分析来评估实际的健康风险.
通过行为科学来确定有效的风险降低措施.

主要方法:

在地表尘埃中对七种重金属进行系统的勘探.
应用HM评估模型来确定污染水平.
对Cr的价值分析,以完善健康风险评估.
行为科学方法来确定暴露控制策略.

主要成果:

表面尘埃中的重金属度从ND到1.91×104 mg/kg不等.
人体质量评估模型证实了EDP的某种程度的污染.
计算出的非致癌 (2.10) 和致癌 (1.60 × 10−4) 风险超过了参考剂量.
价值分析表明,由于Cr (VI) 计算,可能会高估健康风险.
行为干预被认为是有效的减少工人HM暴露.

结论:

研究的EDP具有显著的重金属污染,并带来潜在的健康风险.
准确的风险评估需要考虑金属价值状态,因为Cr (VI) 计算可能会增加风险.
提高工人行为和遵守标准化实践对于减轻暴露至关重要.

关键词:

电子垃圾是一种电子垃圾.暴露于风险中的风险.重金属 (HM) 是一种重金属.干预措施是干预措施.污染水平污染水平

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