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海洋环境中微塑料的风险评估框架

Andrey Ethan Rubin¹, Rima Gnaim², Shiri Levi³

¹Porter School of Earth and Environmental Studies, Faculty of Exact Sciences, Tel Aviv University, Tel Aviv 69978, Israel.

The Science of the total environment

|August 22, 2023

概括

聚烯 (PP) 塑料产品在常见和替代塑料中构成最大的环境危害. 这项研究评估了微塑料的风险,发现由于氧化,酸化和微生物抑制,PP对海洋生态系统造成的损害最大.

科学领域:

环境科学环境科学
海洋生物学海洋生物学
材料科学材料科学材料科学

背景情况:

微塑料 (MP) 的污染威胁到海洋生态系统.
传统的塑料如聚乙烯 (PE),聚烯 (PP) 和聚烯 (PS) 是主要的贡献者.
替代塑料包括回收的聚乙烯四甲酸和聚乳酸.

研究的目的:

进行传统和替代塑料的多因素危险评估.
评估风险,包括MP的丰富性,水酸化,氧化,碎片化和细菌抑制.
为了确定对海洋环境最危险的塑料类型.

主要方法:

从全球监测活动中分析MP的丰富性.
一年长的气候变化实验评估氧化和碎片化.
实验室测试水的酸化潜力和细菌生长抑制.
开发一个风险评估框架,权衡多种危险因素.

主要成果:

基于PE的塑料是最丰富的MP (高达82%).
PS和PP的氧化率较高,导致水的显著酸化 (pH降低高达三倍).
经过气候变化的PS最脆弱;PP和PS提取物抑制了海洋微生物的生长.

结论:

基于聚烯 (PP) 的塑料制品具有最高的整体危险性.
这种多因素分析提供了海洋环境中塑料风险的整体观点.
调查结果强调,需要仔细选择塑料材料,以减轻对环境的影响.

关键词:

潜在的危险潜在的危险海洋环境海洋环境微塑料是一种微塑料.这是一个多因素的因素.天然水是自然的水,自然的水是自然的水.风险评估风险评估风险评估

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