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从一次性面膜中随时间释放的微塑料存在Allium cepa中的细胞毒性风险

Abisha Christy Christudoss¹, Rita Kundu², Christian O Dimkpa³

¹Centre for Nanobiotechnology, Vellore Institute of Technology, Vellore, Tamil Nadu, India.

Ecotoxicology and environmental safety

|June 8, 2024

概括

一次性面罩 (DFM) 释放的微塑料 (MP) 伤害陆地植物. 这项研究表明,DFM在Allium cepa根细胞中引起显著的细胞毒性作用和氧化应激.

科学领域:

环境科学环境科学
植物生物学植物生物学
材料科学材料科学材料科学

背景情况:

随着COVID-19大流行,一次性口罩 (DFM) 的使用增加,引发了环境问题.
微塑料是微塑料 (MP) 的重要来源,在水生生态系统中有记录的影响.
关于DFM中的MPs对陆地植物的影响的研究有限.

研究的目的:

描述从全面膜液 (WMLs) 中释放的微塑料 (MPs).
为了研究WMLs在陆地模型植物Allium cepa.中的毒性.
填补关于DFM对陆地植物生活影响的研究缺口.

主要方法:

整个面具液 (WMLs) 在不同的时间点收集.
包括FE-SEM,FT-IR和拉曼光谱在内的分析技术在WML中确定了MP.
树根细胞被暴露在WML中,以评估细胞毒性作用和氧化应激.

主要成果:

WML中的MP主要是聚烯,随着时间的推移,尺寸越来越小.
WMLs对A. cepa根细胞 (3172%),表现出度依赖的细胞毒性作用.
在暴露于WML的A. cepa根细胞中观察到高氧化应激 (1970%).
在WML中重金属含量是可以忽略不计的,而不是毒性的主要原因.

结论:

一次性面罩 (DFM) 导致陆地环境中的微塑料 (MP) 污染.
DFM衍生的MPs在Allium cepa.中引起显著的细胞毒性作用和氧化应激.
这项研究强调了DFM对陆地生态系统的环境风险.

关键词:

面具被浸泡出来的液体氧化应激是一种氧化应激.植物毒性植物毒性聚烯聚烯的使用方法根细胞是一种干细胞.

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