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在海Mytilus galloprovincialis中的聚乙烯纳米塑料

J M Gonçalves¹, M Benedetti², G d'Errico³

¹CIMA, Centre of Marine and Environmental Research\ARNET - Infrastructure Network in Aquatic Research, University of Algarve, Campus de Gambelas, 8000-139 Faro, Portugal.

Environmental pollution (Barking, Essex : 1987)

|June 28, 2023

概括

聚乙烯纳米塑料 (PS-NP) 危害海洋生物. 研究表明PS-NP降低了贝细胞的活力,并在组织中积累,可能影响生殖和健康.

科学领域:

环境科学环境科学
海洋生物学海洋生物学
毒理学毒理学毒理学

背景情况:

塑料污染,特别是聚乙烯 (PS),是全球日益关注的问题.
纳米塑料 (<1000纳米) 越来越普遍,并且由于它们的小尺寸而带来风险.
像Mytilus galloprovincialis这样的海洋双动物容易受到环境污染物的影响.

研究的目的:

评估聚乙烯纳米塑料 (PS-NP) 在海洋双鱼Mytilus galloprovincialis中的急性和慢性毒性.
研究PS-NP的细胞效应和组织积累.
评估潜在的神经毒性影响和生殖影响.

主要方法:

在实验室中,将贝类血细胞暴露在PS-NP中,以测试细胞活力.
阿里维布里奥·菲舍里 (Aliivibrio fischeri) 的发光抑制试验以确定急性毒性 (LC50).
在28天内,M. galloprovincialis在体内暴露于PS-NP,随后进行组织分析和神经毒性评估.

主要成果:

在24小时暴露于PS-NP后,贝血细胞活力显著下降.
PS-NPs的急性毒性 (LC50) 在180至217μg/L之间.
PS-NPs以特定的时间和组织方式被摄入和积累,在消化腺和生殖腺中度最高.

结论:

PS-NP对海洋双动物和贝细胞呈现急性毒性.
组织积累表明可能对新陈代谢和生殖产生长期不良影响.
需要进一步的研究,才能充分了解PS-NP在海洋生态系统中的细胞危害.

关键词:

细胞毒性细胞毒性摄入摄入摄入 LC(50) 的时间.梅虫 (Mytilus galloprovincialis) 是一个省份的植物.神经毒性神经毒性聚乙烯纳米塑料的聚乙烯纳米塑料.

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