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Updated: Jul 1, 2026

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在日本大阪湾的海面微层中发现人为微粒

Mi Zhou¹, Hirofumi Yanai¹, Chee Kong Yap^1,2

¹Graduate School of Maritime Sciences, Kobe University, Fukaeminami-machi, Higashinada-ku, Kobe 658-0022, Japan.

Journal of xenobiotics

|November 21, 2023

概括

大阪湾的微塑料污染很高,特别是在海面. 来自海洋涂料的聚甲基甲酸是主要的污染物,特别是在较小的颗粒大小中.

科学领域:

环境科学环境科学
海洋污染海洋污染
聚合物科学聚合物科学

背景情况:

微塑料 (MP) 在海洋环境中越来越令人担忧.
研究海洋表面微层 (S-SML) 和散水中的MP对于了解污染水平至关重要.

研究的目的:

为了评估日本大阪湾的国会议员的污染水平.
确定S-SML和散装水中的MPs的数量,分布和组成.
确定议员的主要来源和类型.

主要方法:

在各个地点从大阪湾 (2021-2023) 收集的海水样本.
MPs被过成尺寸范围 (10-53,53-125,125-500,>500微米) 和消化.
用显微镜评估丰富度;使用福里埃变换红外光谱法 (FTIR) 识别的聚合物类型.

主要成果:

平均MP丰度:S-SML中的903±921个物品/千克,而散装水中的55.9±40.4个物品/千克.
在船舶航行路线上发现的MP度最高.
最小的MP (10-53微米) 占81.2% (S-SML) 和62.2% (散装水).
聚甲基甲酸 (PMMA) 是占主导地位的MP类型 (95.1%在S-SML中,45.6%在散装水中),特别是在最小尺寸分数中.

结论:

大阪湾表现出显著的微塑料污染,特别是在海面微层.
海洋涂料,特别是防涂料颗粒 (APP),可能是PMMA的主要来源.
来自船舶的微塑料污染需要集中注意力和缓解策略.

关键词:

大阪湾大阪湾大阪湾大阪湾大阪湾这就是PMMA的PMMA.防涂料颗粒 (APP) 的使用.微粒 (MP) 是一种微粒.海水表面的微层是海水表面的微层.

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