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蔬菜中典型的疏水性有机污染物的摄入:来自被动采样的证据

Rong Wang¹, Yu Wang¹, Ying Dong¹

¹Guangdong Key Laboratory of Environmental Pollution and Health, Jinan University, Guangzhou, China.

Environmental toxicology and chemistry

|August 22, 2024

概括

被动采样器有效地测量植物吸收的疏水性有机污染物 (HOCs). 该方法有助于了解土壤中的污染物通路,这对于环境风险评估至关重要.

科学领域:

环境化学环境化学
植物科学植物科学
毒理学毒理学毒理学

背景情况:

鉴定植物根部吸收疏水性有机污染物 (HOCs) 的数量很困难,因为对它们的土壤孔水可用性数据有限.
了解HOC吸收途径对于评估生态和人类健康风险至关重要.

研究的目的:

评估被动采样器在评估植物的根吸收潜力和HOCs的途径方面的实用性.
通过使用被动样本,调查胡卜和生菜的聚二乙烯 (PBDE) 和有机酸 (OPE) 的吸收情况.

主要方法:

在受污染的土壤系统中,与胡卜和生菜一起使用被动采样器的代码部署.
在植物和被动样本中分析PBDE和OPE度.
计算根与孔水的比率和与日志KOW值的相关性.

主要成果:

植物丰富的PBDE与被动样本度正相关 (r2 = 0.46-0.88).
在生菜中没有OPE的相关性表明潜在的降解.
根与孔水的比率因污染物和植物物种而异,表明被动运输和分离是主要的吸收机制.

结论:

被动采样器是评估植物吸收土壤中可生物利用的高化合物分数的适当工具.
这种方法有助于探索持久性HOCs的植物根部吸收途径.
这些发现有助于改善污染土壤的环境风险评估策略.

关键词:

疏水性有机化合物疏水性有机化合物被动抽样是一种被动抽样.植物吸收的时间根与孔水的比率是根与孔水的比率.土壤土壤土壤.

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