从聚微塑料纤维中出重金属以及模拟现实世界的场景中的潜在风险
Chencheng Zuo1, Yue Li1, Yuye Chen1
1State Key Laboratory of Estuarine and Coastal Research, East China Normal University, Shanghai 200241, China.
Journal of hazardous materials
|October 1, 2023
概括
这项研究量化了织品中的重金属及其从微塑料纤维 (MF) 中释放的重金属. 虽然MF可以释放金属,但由于摄入量低,对人类和鱼类的风险是可以忽略不计的.
科学领域:
- 环境科学 环境科学
- 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:
- 合成织品通常含有重金属,以增强功能.
- 微塑料纤维 (MFs) 从织品中脱落,通过重金属释放带来潜在风险.
- 来自MF的重金属的漏行为和健康风险尚未得到充分理解.
研究的目的:
- 为了量化普通聚织品中的重金属含量.
- 为了评估各种环境和生物流体中MFs的重金属漏.
- 评估与MF摄入相关的潜在健康风险.
主要方法:
- 在八种聚织品中确定金属含量.
- 评估了MF (地毯,窗,毛衣,围巾) 在淡水,唾液,肺液和胃液中的金属液.
- 对老化指标的分析金属度和O/C比.
主要成果:
- 在地毯上,金属总度最高 (218±8 mg/kg).
- 紫外线气候变化和长时间暴露增加了MF表面粗和淡水中的金属出.
- 生物流体中的浸出顺序:Sb>Mn>Cr和Cr>Mn>Pb;O/C比率是聚的合适老化指标.
结论:
- 估计MF的每日金属摄入量低于人类和鱼类的安全值.
- 通过MF接触重金属的风险是可以忽略不计的.
- 多重可以作为水生环境中重金属污染物的载体,需要进一步评估生态风险.
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