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在三种土壤中种植的生菜中吸收轮胎磨损化合物

Anya Sherman¹, Luzian Elijah Hämmerle², Evyatar Ben Mordechay³

¹University of Vienna, Centre for Microbiology and Environmental Systems Science, Department of Environmental Geosciences EDGE, 1090 Vienna, Austria; University of Vienna, Research Platform Plastics in the Environment and Society (PLENTY), 1090 Vienna, Austria.

Environment international

|August 30, 2025

概括

轮胎磨损化合物会积聚在生菜中, 对人类健康构成危险. 这项研究追踪了农业土壤中作物的吸收,转化和残留物.

科学领域:

环境化学
农业科学
食品安全问题

背景情况:

在食品作物中越来越多地检测到轮胎磨损衍生化合物.
在现实农业条件下,这些污染物在食用植物中的吸收和积累存在担忧.

研究的目的:

调查 (Lactuca sativa L.) 中特定的轮胎磨损衍生化合物 (六甲胺,六甲胺,六甲胺,六甲胺,丁) 的积累,转化和命运.
评估土壤特性对这些化合物的积累和转化的影响.
评估通过食用受污染的作物对人类暴露的影响.

主要方法:

在三种具有不同特性 (沙子,粘土,CEC,有机物) 的农业土壤中种植菜.
用含有四种模型轮胎磨损化合物的混合水灌土壤,剂量为1mg/L.
分析了土壤和植物组织中的积累,不可提取的残留物和转化产物.
使用分析化学技术量化了叶中的化合物度.

主要成果:

四种轮胎磨损化合物 (HMMM,6PPD,DPG,6PPD-) 在叶中积累了显著的度.
不能提取的残留物形成限制了HMMM和6PPD的积累,而DPG和6PPD的生物可获得性更高.
土壤特性,特别是沙子和粘土含量,影响了化合物积累,在沙土中观察到更高的度.
在土壤和植物矩阵中确定了原始化合物的多种转化产物.

结论:

在农业相关条件下,轮胎磨损产生的化合物可以积聚在可食作物中,如生菜.
不能提取的残留物和土壤特征对这些污染物的命运和植物吸收起着至关重要的作用.
这些化合物及其转化产品在作物中的存在凸显了人类暴露的潜在风险,需要对食品安全的影响进行进一步调查.

关键词:

6PPD-子污染物农作物植物吸收量土壤植物连续性轮胎衍生化合物

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