土壤中的聚烯-相互作用:对金属流动性,植物吸收和人类健康的影响
Ivana Mikavica1, Dragana Ranđelović1, Miloš Ilić2
1Institute for Technology of Nuclear and other Mineral Raw materials, Boulevard Franchet d`Esperey 86, Belgrade, Serbia.
Journal of hazardous materials
|November 25, 2025
概括
聚烯微塑料 (MPs) 增加了 (Ni) 在土壤中的生物可用性,增强了植物吸收和潜在的致癌风险. 这项研究揭示了MPs改变了金属的移动性,影响了药用植物的食品安全.
科学领域:
- 环境科学 环境科学
- 生态毒理学 生态毒理学
- 土壤科学 土壤科学
背景情况:
- 微塑料 (MP) 和金属在陆地生态系统中共存,带来未知的风险.
- MPs和金属对土壤生物群和人类健康的联合影响需要研究.
研究的目的:
- 研究聚钢 (PS) - (Ni) 污染对土壤药用植物系统中Ni流动性的相互作用影响.
- 评估通过药用植物暴露PS-Ni对人类健康的相关风险.
主要方法:
- 一个土壤实验,使用Capsella bursa-pastoris暴露于对照物,单独使用PS,单独使用Ni (50和500毫克/公斤),以及结合PS-Ni处理.
- 使用包括结构方程建模 (SEM) 和主要组件分析 (PCA) 在内的技术,分析的移动性,生物可用性,植物吸收和致癌风险.
主要成果:
- 添加PS显著增加了Ni的生物可用性,高达81.2%,主要是通过促进Ni转化为可降解分数.
- 通过掩盖矿物质结合点并产生稀释效应,PS促进了Ni的再分配,增加了Ni的流动性.
- 暴露于PS刺激了C. bursa-pastoris的Ni吸收,并增加了62.5%的致癌风险 (与对照组相比) 和28.6%的致癌风险 (仅与Ni50相比).
结论:
- 聚酸的存在显著影响的生物可用性和植物转移,突出了MPs在改变土壤中的金属行为的作用.
- PS-Ni污染对药用植物的食品安全构成相当大的风险,影响人类健康.
- 这项研究提供了对微塑料和金属污染的生态毒理学影响的关键见解.
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