从电子垃圾到生活空间:阻燃剂污染家庭用品增加了对塑料回收利用的担忧
Megan Liu1, Sicco H Brandsma2, Erika Schreder1
1Toxic-Free-Future, 4649 Sunnyside Ave N Suite 540, Seattle, WA 98103, United States.
Chemosphere
|September 13, 2024
概括
阻燃剂 (FRs) 在电子产品中很常见,可以污染回收的家庭用品. 许多产品含有有害的FRs,导致不必要的暴露风险,特别是基于烯的塑料.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 毒理学 毒理学 毒理学
背景情况:
- 阻燃剂 (FRs),包括 (BFRs) 和有机 (OPFRs) 类型,广泛用于电子产品.
- 健康问题包括致癌性,内分泌干扰和神经毒性.
- 缺乏透明度和限制有助于FR的广泛存在和传播.
研究的目的:
- 为了确定黑色塑料家用产品是否含有新兴和逐步淘汰的FR.
- 调查聚合物类型是否预测FR污染.
- 评估回收电子塑料产生的潜在暴露风险.
主要方法:
- 对203种黑色塑料家用产品进行 (Br) 选.
- 对BFR,OPFR和聚合物类型 (例如ABS,HIPS,PP) 的分析产品 Br>50ppm.
- 估计从受污染的厨房用具中暴露于去甲二乙烯 (BDE-209).
主要成果:
- 在85%的分析产品中检测到FR,其度高达22,800 mg/kg.
- 确定了受限制的deca-BDE及其替代品 (DBDPE,TBPP-TAZ) 和2,4,6-TBP.
- 聚烯基塑料的FR含量明显高于聚烯和尼龙.
- 估计从厨房用具中摄入的BDE-209的中位数 (34,700 ng/天) 超过了尘埃和饮食摄入的估计.
结论:
- 在没有透明度和限制的情况下,将电子塑料回收成家居用品会导致意外接触有毒FRs.
- 在电子产品中常用的烯基塑料是FR污染的重要储.
- 迫切需要改善化学品管理和限制电子产品回收利用,以减轻公共卫生风险.
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