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Sara Martínez-Pérez^1,2, Theresa Schell¹, Daniel Franco¹

¹IMDEA Water Institute, Madrid, Spain.

Environmental toxicology and chemistry

|July 1, 2025

概括

土壤中的微塑料 (MPs) 伤害了春尾虫,但不会伤害土. 虽然地不选择地摄入MP,但春尾虫的繁殖和生长减少,尽管目前的土壤MP水平对环境造成的风险很低.

科学领域:

环境科学环境科学
生态毒理学生态毒理学
土壤生态学土壤生态学

背景情况:

土壤生态系统充当了微塑料 (MP) 的重要沉积点.
现实MP混合物对土壤生物的影响研究有限.
用污水污泥修改的农业土壤通常含有HDPE,PP碎片和PES纤维.

研究的目的:

评估一个现实的MP混合物对 (Eisenia andrei) 和春尾 (Folsomia candida) 的慢性影响.
为了确定微塑料摄入率和对这些关键的无脊椎动物的潜在不良影响.

主要方法:

在LUFA 2.2土壤中,地和弹暴露在HDPE,PP碎片和PES纤维的混合物中.
暴露度为E. andrei的干土的0-1%,F. candida的0-5%.
终点包括生存,生长,繁殖和幼儿干重;MP摄入量也被量化.

主要成果:

E. andrei 摄入的MPs与暴露的比例相称,表明吸收不选择性,没有观察到显著的不良影响.
在高度下,F.candida的MP摄入量非常低,但在高度下,其生殖产量 (~30%) 和幼虫干重量显著下降.
对于F. candida,没有观察到的效果度 (NOEC) 为繁殖的0.4%,幼干重的1%.

结论:

对F. candida的不良影响可能来自于土壤性质的改变或塑料添加剂,而不是直接吸收MP.
目前在土壤中的环境微塑料度似乎对基于衍生NOECs的土壤生物构成无意义的风险.
虫和春尾虫之间的敏感性差异凸显了微塑料风险评估中需要对多种生物进行测试的必要性.

关键词:

生态毒理学生态毒理学微塑料是一种微塑料.风险评估风险评估土壤无脊椎动物土壤无脊椎动物吸收时间吸收时间

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