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商业可生物降解塑料制品中添加剂的生态毒性评估:对可持续性和环境风险的影响

Min Jang¹, Minkyung Lee¹, Seonghyn Chung²

¹Research Center for Bio-Based Chemistry, Korea Research Institute of Chemical Technology (KRICT), Ulsan 44429, Republic of Korea.

The Science of the total environment

|May 2, 2024

概括

生物降解塑料甚至在降解后也可能会泄露有害的甲酸 (PAE),如二甲异甲酸 (DOIP). 这项研究量化了PAE漏,揭示了这些"环保"替代品带来的生态毒性风险.

科学领域:

环境科学环境科学
聚合物化学聚合物化学
生态毒理学生态毒理学

背景情况:

可生物降解塑料被推广为传统塑料的可持续替代品.
有限的研究存在于可生物降解塑料及其添加剂的生态毒性.
可生物降解塑料中的添加剂可能会持续存在并构成环境风险.

研究的目的:

通过分析浸的甲酸 (PAE) 来评估可生物降解塑料的生态毒性.
量化PAE类型和数量从商业可生物降解塑料中入土壤液.
评估与这些浸出物质相关的环境风险.

主要方法:

对16种商业可生物降解的塑料制品进行分析.
使用气体染色体质谱法 (GC-MS) 进行浸出PAE的定性和定量分析.
在垃圾填埋条件下模仿PAE浸出到土壤浸出物中.

主要成果:

经常检测到非受监管的二甲基异甲酸盐 (DOIP) (40212μg g-1).
对DOIP观察到显著的生态毒性,特别是在水生环境中.
还检测到其他添加剂,如抗氧化剂和滑剂.

结论:

生物降解塑料可以出有毒的添加剂,尽管聚合物降解,但仍存在生态毒性风险.
目前对可生物降解塑料的销售仅仅是"环保",可能会误导消费者.
开发环保添加剂和进一步研究浸出动力学和长期毒性至关重要.

关键词:

可生物降解的塑料.迪奥克提尔异甲酸盐是什么?生态毒性生态毒性绿色的洗绿色的洗甲酸替代品甲酸替代品甲酸 Ester 是一种甲酸.

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