可生物降解的微塑料与污染物的相互作用及其对水生生物群的潜在毒性:综述

IF 15 2区 环境科学与生态学 Q1 CHEMISTRY, MULTIDISCIPLINARY
Wajid Ali, Haksoo Jeong, Jae-Seong Lee, Philippe Zinck, Sami Souissi
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引用次数: 0

摘要

全球塑料产量从 1950 年的 170 万吨稳步增长到 2022 年的 4 亿多吨,其中约 60% 的塑料最终进入垃圾填埋场和海洋。越来越多的证据表明,微塑料会对生物群和生态系统产生负面影响。生物降解塑料可能是一种安全的替代品,但其潜在的负面影响尚未得到全面分析。在此,我们回顾了生物降解塑料,重点关注它们转化成微塑料的过程、它们与污染物的相互作用以及它们对水生生物群的综合毒性。生物降解塑料包括聚乳酸、聚羟基烷酸酯、聚丁二酸丁二醇酯、聚己二酸丁二醇酯共对苯二甲酸酯和聚ε-己内酯。我们发现,一些生物基塑料很难实现生物降解。有些生物基塑料可以堆肥,但需要特定的环境条件才能进行生物降解。生物基塑料释放到环境中会产生微塑料,对生物群造成影响。与公众普遍认为的相反,生物降解塑料可能不仅来源于生物资源,也可以从化石燃料中合成。源于可生物降解塑料的微塑料可与污染物相互作用,吸附并迁移这些污染物,从而对暴露在污染物中的生物产生协同或拮抗作用。微塑料上形成的生物膜会影响其降解和与污染物的相互作用。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Biodegradable microplastics interaction with pollutants and their potential toxicity for aquatic biota: a review

Biodegradable microplastics interaction with pollutants and their potential toxicity for aquatic biota: a review

The global plastic production has steadily increased from 1.7 million tons in 1950 to over 400 million tons in 2022, with about 60% of plastic ultimately ending up in landfills and oceans. There is also growing evidence that microplastics exert negative effects on biota and ecosystems. Biodegradable plastics may represent a safe alternative, yet their potential adverse effects have not been comprehensively analyzed. Here, we reviewed biodegradable plastics, with focus on their conversion into microplastics, their interactions with pollutants, and their combined toxicity for aquatic biota. Biodegradable plastics include polylactic acid, polyhydroxyalkanoates, polybutylene succinate, poly(butylene adipate-co-terephthalate), and poly(ε-caprolactone). We found that some biobased plastics are hardly biodegradable. Some biobased plastics are compostable but require specific environmental conditions for their biodegradation. Biobased plastics can generate microplastics when released into the environment, which can impact biota. Contrary to the common public belief, biodegradable plastics may not only originate from biosources but can be synthesized from fossil fuels. Microplastics originating from biodegradable plastics can interact with pollutants, adsorbing and transporting these pollutants, resulting in synergistic or antagonistic effects on exposed organisms. Biofilm formation on microplastics impacts their degradation and pollutant interactions.

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来源期刊
Environmental Chemistry Letters
Environmental Chemistry Letters 环境科学-工程:环境
CiteScore
32.00
自引率
7.00%
发文量
175
审稿时长
2 months
期刊介绍: Environmental Chemistry Letters explores the intersections of geology, chemistry, physics, and biology. Published articles are of paramount importance to the examination of both natural and engineered environments. The journal features original and review articles of exceptional significance, encompassing topics such as the characterization of natural and impacted environments, the behavior, prevention, treatment, and control of mineral, organic, and radioactive pollutants. It also delves into interfacial studies involving diverse media like soil, sediment, water, air, organisms, and food. Additionally, the journal covers green chemistry, environmentally friendly synthetic pathways, alternative fuels, ecotoxicology, risk assessment, environmental processes and modeling, environmental technologies, remediation and control, and environmental analytical chemistry using biomolecular tools and tracers.
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