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Neonicotinoid insecticides in the drinking water system - Fate, transportation, and their contributions to the overall dietary risks

机译：饮用水系统中的新烟碱类杀虫剂-命运，运输及其对总体饮食风险的贡献

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摘要

Neonicotinoids (Neonics) have become the most widely used insecticides around the world in recent years. Due to the hydrophilic character, neonics are emerging contaminants in drinking water. In this study, we aimed to characterize and quantify the fate and transport of neonics in the drinking water treatment system and their contributions to the overall dietary risks. Seven neonics in 97 surface and drinking water samples in the city of Hangzhou, China were analyzed. The relative potency factor method was adopted in order to calculate the total neonics concentrations. We then used the Monte Carlo simulation to calculate the chronic daily intake (CDI) of total neonics from water consumption. All 16 surface water samples collected from two rivers contained at least two neonics, and more than 93% of those contained 3 or more neonics. lmidacloprid was detected in all 16 surface water samples, followed by clothianidin and acetamiprid with average concentrations of 11.9, 7.6, 17.6 ng L-1, respectively. The drinking water treatment plants removed approximately 50% of neonics from surface water. However, 68 out of 71 tap water samples that we collected from the household faucets contained at least one neonic, with the highest average concentrations of 5.8 ng L-1 for acetamiprid. The maximum of CDIs of total neonics from water consumption for adult and children were 10.2 and 12.4 ng kg-1 d-1, respectively, which are significantly lower than the acceptable daily intake (ADI). The results presented here shown drinking water consumption only represented an insignificant portion of dietary risks of total neonics, mainly due to the modern drinking water treatment technologies that are capable of removing significant amount of neonics from drinking water. However, the ubiquity of neonics in the drinking water sources to kitchen faucets, should be a concern for public health. (C) 2019 Elsevier Ltd. All rights reserved.
机译：近年来，新烟碱类已成为世界上使用最广泛的杀虫剂。由于具有亲水性，因此，尼古丁是饮用水中新出现的污染物。在这项研究中，我们旨在表征和量化饮用水处理系统中尼古丁的命运和运输及其对总体饮食风险的贡献。分析了中国杭州市97个地表水和饮用水样品中的7个氖离子。采用相对效价因子法计算总氖浓度。然后，我们使用蒙特卡洛模拟从耗水量中计算出总氖气的慢性每日摄入量（CDI）。从两条河流收集的全部16个地表水样品中至少包含两个氖离子，其中超过93％的样品中含有3个或更多氖离子。在所有16个地表水样品中均检出了吡虫啉，其次是可比丁和扑热息痛，其平均浓度分别为11.9、7.6、17.6 ng L-1。饮用水处理厂从地表水中去除了约50％的氖气。但是，在我们从家用水龙头收集的71个自来水样品中，有68个包含至少一种氖离子，对乙酰胺的最高平均浓度为5.8 ng L-1。成人和儿童饮水所产生的总NEC的CDI最大值分别为10.2和12.4 ng kg-1 d-1，大大低于可接受的每日摄入量（ADI）。此处显示的结果表明，饮用水消耗仅占总氖酸饮食风险的很小一部分，这主要归功于能够从饮用水中去除大量氖酸的现代饮用水处理技术。但是，饮用水中的尼古丁含量普遍存在于厨房水龙头中，应引起公众健康的关注。 （C）2019 Elsevier Ltd.保留所有权利。

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  • 来源
    《Environmental Pollution》 |2020年第3期|113722.1-113722.8|共8页
  • 作者

  • 作者单位

    Southwest Univ Coll Resources & Environm Chongqing 400715 Peoples R China;

    Zhejiang Univ Technol Coll Environm Hangzhou 310032 Zhejiang Peoples R China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Neonicotinoids; Fate; Drinking water; Dietary risks; Public health;

    机译：新烟碱类;命运;饮用水;饮食风险;公共卫生;

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