农药转化产品:饮用水的潜在新兴来源
Laure Pasquini1, Sophie Lardy-Fontan2, Christophe Rosin2
1ANSES, Nancy Laboratory for Hydrology, Water Chemistry Department, 40 Rue Lionnois, 54000, Nancy, France. laure.pasquini@gmail.com.
Environmental science and pollution research international
|January 30, 2025
概括
农药转化产品 (TPs) 在法国饮用水中很常见,有些人超过了安全限制. 目前的水处理方法在去除这些持久化合物的有效性有限.
科学领域:
- 环境化学环境化学
- 分析水质 分析水质
- 公共卫生 公共卫生
背景情况:
- 农药转化产品 (TP) 在水生环境中越来越多地被检测到.
- TP表现出较高的极性,较低的挥发性和降低的生物降解性,导致更大的移动性和持久性.
- 这些特点使得TP对水资源和饮用水安全产生了重大关注.
研究的目的:
- 评估法国157种农药TP和活性物质在原料和饮用水中的存在情况.
- 通过饮用水评估人口对农药及其代谢物的潜在暴露.
- 为加强饮用水监测确定新的TP.
主要方法:
- 分析了两年来收集的600多个水样.
- 157种农药TP和选定的活性物质的量化.
- 在原料和成品饮用水中监测TP.
主要成果:
- 在50%以上的样本中,甲尼尔R471811和甲基ESA经常被定量.
- 首次在法国饮用水中监测了几个TP,包括二甲基CGA369873和甲 (DPC).
- 超过30%的饮用水样品超过了0.1μg/L的甲R471811标准;DPC达到9.8μg/L.
结论:
- 法国饮用水中普遍存在TP,经常超出监管标准.
- 在原料和自来水中类似的检测频率表明当前处理过程的有效性有限.
- 持续监测TP,包括那些逐步淘汰的农药,是非常重要的,因为他们的持久性.
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