加拿大曲梅贝克地表水和饮用水中46种农药和8种转化产品的时间趋势（2021-2023年）：转化产品的潜在健康风险高于母体农药

IF 12.4 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Water Research Pub Date : 2025-02-20 DOI:10.1016/j.watres.2025.123339

Xiameng Feng , Zhen Liu , Sung Vo Duy , Lise Parent , Benoit Barbeau , Sébastien Sauvé

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引用次数: 0

摘要

本研究的目的是调查曲海湾地表水中46种农药和8种转化产物（TPs）的时间变化趋势，并评估其通过饮用造成的相关健康风险。从2021年至2023年（838天），在饮用水处理厂（DWTP）每周采样两次地表水和饮用水。采用超高效液相色谱-质谱联用技术分析农药和总磷的浓度。这些数据用于评估农药和总毒性物质在源头的时间变化、它们在dwtp中的去除、它们通过饮用水的人类暴露以及相关的健康风险。结果表明：地表水中大部分农药及其总效磷浓度均在6月和7月达到峰值，部分总效磷（异丙甲氯乙磺酸、异丙甲氯氧苯酸、去乙基拉嗪）浓度高于其母体化合物。常规处理后的分析显示，饮用水中目标农药和TPs的总浓度没有显著下降。值得注意的是，饮用水中有11种农药（如阿特拉津、mecoprop）和1种TP（去异丙基latrazine）的浓度高于地表水。夏季高峰期的危害指数（HI）是年平均水平的18倍。TPs的HI值是母体化合物的1.4 ~ 144倍。本研究首次通过长期采样评估了饮用水中TPs与母体农药的健康风险，强调了进一步规范饮用水中TPs的迫切需要。

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Temporal trends of 46 pesticides and 8 transformation products in surface and drinking water in Québec, Canada (2021–2023): Potential higher health risks of transformation products than parent pesticides

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The objective of the present study was to investigate the temporal trends of 46 pesticides and 8 transformation products (TPs) in the surface water of Québec and assess their associated health risks posed through drinking water consumption. Surface and drinking water were sampled twice per week at a drinking water treatment plant (DWTP) from 2021 to 2023 (838 days). Pesticide and TPs concentrations were analysed using ultra-high-performance liquid chromatography coupled with mass spectrometry. The data were used to evaluate temporal variations of pesticides and TPs at the source, their removal in DWTPs, their human exposure via drinking water, and the associated health risks. The results showed that peak concentrations of most pesticides and their TPs in surface water occurred in June and July, and some TPs (such as metolachlor ethanesulfonic acid, metolachlor oxanilic acid, and desethylatrazine) exhibited higher concentrations than their parent compounds in surface water. Post conventional treatment analysis revealed no significant decrease in the total concentrations of target pesticides and TPs in drinking water. Notably, 11 pesticides (such as atrazine, mecoprop) and 1 TP (desisopropylatrazine) showed higher concentration in drinking water than in surface water. The hazard index (HI) was up to 18 times higher in summer peak periods than the annual average. Finally, TPs exhibited HI 1.4 to 144 times higher than corresponding parent compounds. This study was the first to assess health risks of TPs versus parent pesticides in drinking water through long-term sampling, highlighting the urgent need for further TPs regulation in drinking water.

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来源期刊

Water Research 环境科学-工程：环境

CiteScore

20.80

自引率

9.40%

发文量

1307

审稿时长

38 days

期刊介绍： Water Research, along with its open access companion journal Water Research X, serves as a platform for publishing original research papers covering various aspects of the science and technology related to the anthropogenic water cycle, water quality, and its management worldwide. The audience targeted by the journal comprises biologists, chemical engineers, chemists, civil engineers, environmental engineers, limnologists, and microbiologists. The scope of the journal include: •Treatment processes for water and wastewaters (municipal, agricultural, industrial, and on-site treatment), including resource recovery and residuals management; •Urban hydrology including sewer systems, stormwater management, and green infrastructure; •Drinking water treatment and distribution; •Potable and non-potable water reuse; •Sanitation, public health, and risk assessment; •Anaerobic digestion, solid and hazardous waste management, including source characterization and the effects and control of leachates and gaseous emissions; •Contaminants (chemical, microbial, anthropogenic particles such as nanoparticles or microplastics) and related water quality sensing, monitoring, fate, and assessment; •Anthropogenic impacts on inland, tidal, coastal and urban waters, focusing on surface and ground waters, and point and non-point sources of pollution; •Environmental restoration, linked to surface water, groundwater and groundwater remediation; •Analysis of the interfaces between sediments and water, and between water and atmosphere, focusing specifically on anthropogenic impacts; •Mathematical modelling, systems analysis, machine learning, and beneficial use of big data related to the anthropogenic water cycle; •Socio-economic, policy, and regulations studies.