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塑料颗粒的环境度对淡水生物的原性影响

Giulia Cesarini¹, Silvia Secco¹, Davide Taurozzi¹

¹Department of Sciences, University of Roma Tre, Viale G. Marconi 446, 00146 Rome, Italy.

The Science of the total environment

|July 19, 2023

概括

微塑料颗粒对淡水生态系统构成风险. 这项研究发现,在低度下,藻有原性作用,在Hydra vulgaris有降低的再生能力,这凸显了对多种生物体的测试的需要.

科学领域:

环境科学环境科学
生态毒理学生态毒理学
淡水生物学淡水生物学

背景情况:

微塑料在淡水环境中普遍存在.
评估微塑料对淡水生物的有毒和致病性影响至关重要.
对塑料颗粒暴露的早期生命阶段和再生能力的研究不足.

研究的目的:

调查聚乙烯-甲基甲酸 (P(S-co-MMA)) 颗粒对藻Cocconeis placentula和藻Hydra vulgaris的致病作用.
为了评估环境相关度的影响.
评估对生命早期阶段和再生能力的影响.

主要方法:

控制的实验室暴露C. 胎盘和H. vulgaris对P ((S-co-MMA) 颗粒.
在藻中观察藻学频率.
在Hydra.中测量再生速率,养能力和触手反应能力.
应用修改后的原性风险指数.

主要成果:

在C. placentula中显著的致效应和在H. vulgaris中降低的再生速度在0.1μg/L下观察到.
在96小时后,H. vulgaris的食能力和触角反应能力受损.
在28天内对藻生长没有显著影响.
在测试度下,对C. placentula有中度的致病风险,对H. vulgaris有低风险.

结论:

不同的营养水平有机体对塑料颗粒表现出不同的致反应.
微塑料的环境相关度可以引起不良影响.
需要进一步的研究来了解微塑料对淡水生态系统的全部影响.

关键词:

类动物和类动物.形态生物标志物形态生物标志物塑料聚合物的塑料聚合物聚合物颗粒是一种聚合物颗粒.有毒性终点的终点是:产物危险指数指数

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