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追踪添加剂的命运从可生物降解的覆盖膜到土壤:一项全面的LC-MS调查

Valentina Giglio¹, Darina Dvorakova², Fabiana Convertino³

¹Institute for Polymers, Composites, and Biomaterials CNR-IPCB, Via Paolo Gaifami 18, Catania 95126, Italy.

Journal of hazardous materials

|October 5, 2025

概括

可生物降解的覆盖膜会将添加剂释放到土壤中,造成环境风险. 稳定剂可以积聚在微塑料中,而其他添加剂表现出移动性,突出需要更好的风险评估.

科学领域:

环境科学环境科学
聚合物化学聚合物化学
土壤科学土壤科学

背景情况:

生物降解皮膜 (BMF) 越来越多地被用作农业中常规塑料的替代品.
在BMF中聚合物添加剂 (PA) 的长期环境命运和影响尚不清楚.
在降解过程中,添加剂可以从BMF中出,这可能会影响土壤生态系统和人类健康.

研究的目的:

在现实现场环境中研究BMF中的聚合物添加剂的液和转化.
分析特定添加剂及其在土壤中的副产品的行为.
提供与BMF使用相关的环境风险的见解.

主要方法:

对BMF和周围土壤的现场埋葬调查.
有针对性的超高性能液态色谱-并联质谱 (UHPLC-MS/MS) 用于量化15种添加剂.
非定位的高分辨率质谱 (HRMS) 用于识别转化副产品.

主要成果:

添加剂的漏行为根据分子量,极性和聚合物亲和力而有所不同.
像Irgafos 168这样的稳定剂被发现在退化BMF的微塑料碎片中存在.
更多的极性添加剂,如tributyl-O-acetylcitrate,在土壤中显示出显著的垂直移动性.

结论:

在土壤环境中,BMF降解导致聚合物添加剂的释放和转化.
某些添加剂在微塑料中的持久性和其他添加剂的移动性需要仔细考虑它们对环境的影响.
调查结果强调需要加强对农业生态系统中BMF的风险评估和监管策略.

关键词:

农业电影农业电影农业电影有机添加剂有机添加剂塑料污染问题塑料污染问题有针对性的质谱测量.没有目标的方法.

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