在回收和垃圾填埋/倾倒设施的环境部分中对聚二乙烯污染的审查:发达地区与发展中国家的视角
Sidra Shakil1, Yumna Sadef1, Naeem Akhtar Abbasi1
1College of Earth and Environmental Sciences, University of the Punjab, Lahore, Pakistan.
概括
电子废物回收和处置场所是聚二乙烯 (PBDE) 的重要来源. 回收中心的PBDE度高于垃圾填埋场,这凸显了全球需要更好地管理电子废物.
科学领域:
- 环境科学 环境科学
- 化学 化学 化学
- 毒理学 毒理学 毒理学
背景情况:
- 电子设备是聚化二乙烯 (PBDE) 的主要来源,这是一种化阻燃剂 (BFR) 的类别.
- 尽管由于毒性和持久性而受到禁令,但电子废物回收和倾倒场仍然是活跃的PBDE来源.
- 由于在电子垃圾中广泛存在,PBDE会给环境带来风险.
研究的目的:
- 审查电子废物回收和垃圾填埋场环境部分的历史和当前PBDE度.
- 确定影响PBDE排放,分散,沉积,积累和降解的因素.
- 解决知识差距,以改善PBDE的风险评估和环境监测.
主要方法:
- 对环境组件中PBDE度研究的文献综述.
- 分析固体基质,水和来自回收和垃圾填埋场的浸出物中的PBDE含量.
- 检查影响PBDE命运和环境中传播的因素.
主要成果:
- 与垃圾填埋场/倾倒场相比,回收中心在固体矩阵中的PBDE度显著更高.
- 由于其脂友性质,PBDE优先积聚在固体环境矩阵中.
- 液由于有机物质而含有比纯水更高的PBDE度,但低于固体矩阵.
结论:
- 发达地区需要优化回收过程和管理电子废物PBDE的能力.
- 发展中国家需要投资于可持续的电子废物管理基础设施和更严格的监管执法.
- 有效的全球战略对于减轻电子垃圾造成的PBDE污染至关重要.
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