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首页> 外文期刊>Environmental pollution >Year-round presence of neonicotinoid insecticides in tributaries to the Great Lakes, USA
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Year-round presence of neonicotinoid insecticides in tributaries to the Great Lakes, USA

机译：美国大湖支流中常年存在新烟碱类杀虫剂

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摘要

To better characterize the transport of neonicotinoid insecticides to the world's largest freshwater ecosystem, monthly samples (October 2015 September 2016) were collected from 10 major tributaries to the Great Lakes, USA. For the monthly tributary samples, neonicotinoids were detected in every month sampled and five of the six target neonicotinoids were detected. At least one neonicotinoid was detected in 74% of the monthly samples with up to three neonicotinoids detected in an individual sample (10% of all samples). The most frequently detected neonicotinoid was imidacloprid (53%), followed by clothianidin (44%), thiamethoxam (22%), acetamiprid (2%), and dinotefuran (1%). Thiacloprid was not detected in any samples. The maximum concentration for an individual neonicotinoid was 230 ng L-1 and the maximum total neonicotinoids in an individual sample was 400 ng L-1. The median detected individual neonicotinoid concentrations ranged from non-detect to 10 ng L-1. The detections of clothianidin and thiamethoxam significantly increased as the percent of cultivated crops in the basins increased (p = 0.73, P = .01; p = 0.66, P = .04, respectively). In contrast, imidacloprid detections significantly increased as the percent of the urbanization in the basins increased (p = 0.66, P = .03). Neonicotinoid concentrations generally increased in spring through summer coinciding with the planting of neonicotinoid-treated seeds and broadcast applications of neonicotinoids. More spatially intensive samples were collected in an agriculturally dominated basin (8 sites along the Maumee River, Ohio) twice during the spring, 2016 planting season to provide further information on neonicotinoid inputs to the Great Lakes. Three neonicotinoids were ubiquitously detected (clothianidin, imidacloprid, thiamethoxam) in all water samples collected within this basin. Maximum individual neonicotinoid concentrations was 330 ng L-1 and maximum total neonicotinoid concentration was 670 ng L-1; median detected individual neonicotinoid concentrations were 7.0 to 39 ng L-1. Published by Elsevier Ltd.
机译：为了更好地表征新烟碱类杀虫剂向世界上最大的淡水生态系统的运输，每月（10月2015年9月，2016年9月）从10个主要支流采集到美国大湖。对于每月的支流样本，每个月采样中都检测到新烟碱，并检测了六个目标新烟碱中的五个。在每月样本中有74％至少检测出一种新烟碱，而在单个样本中（所有样本的10％）检测出多达三种新烟碱。检出率最高的新烟碱是吡虫啉（53％），其次是可比胺（44％），噻虫嗪（22％），对乙酰氨基酚（2％）和地替呋喃（1％）。在任何样品中均未检出噻虫啉。单个新烟碱的最大浓度为230 ng L-1，单个样品中最大总烟碱的总量为400 ng L-1。中位数检测到的单个新烟碱浓度范围为未检测到10 ng L-1。盆地中耕作作物的百分比增加，可​​比丁和噻虫嗪的检出率显着增加（分别为p = 0.73，P = 0.01； p = 0.66，P = 0.04）。相反，吡虫啉的检出率随盆地中城市化百分比的增加而显着增加（p = 0.66，P = .03）。春季到夏季，新烟碱的浓度通常会增加，这与新烟碱处理过的种子的播种和新烟碱的播撒应用相吻合。在2016年春季种植季节期间，两次在农业占主导地位的盆地（沿俄亥俄州的莫米河沿岸的8个地点）收集了更多空间密集的样本，以提供有关大湖中新烟碱类投入物的更多信息。在该流域内收集的所有水样中，普遍检测到三种新烟碱类物质（可尼丁，吡虫啉，噻虫嗪）。最大的新烟碱浓度为330 ng L-1，最大的总新烟碱浓度为670 ng L-1。中位数检测到的单个新烟碱浓度为7.0至39 ng L-1。由Elsevier Ltd.发布

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  • 来源
    《Environmental pollution》 |2018年第4期|1022-1029|共8页
  • 作者

    Hladik Michelle L.; Corsi Steven R.; Kolpin Dana W.; Baldwin Austin K.; Blackwell Brett R.; Cavallin Jenna E.;

  • 作者单位

    US Geol Survey, Calif Water Sci Ctr, 6000 J St,Placer Hall, Sacramento, CA 95819 USA;

    US Geol Survey, Upper Midwest Water Sci Ctr, 8505 Res Way, Middleton, WI 53562 USA;

    US Geol Survey, Illinois Iowa Water Sci Ctr, 400 S Clinton St, Iowa City, IA 52240 USA;

    US Geol Survey, Idaho Water Sci Ctr, 230 Collins Rd, Boise, ID 83702 USA;

    US EPA, Midcontinent Ecol Div, 6201 Congdon Blvd, Duluth, MN 55804 USA;

    US EPA, Badger Tech Serv, Midcontinent Ecol Div, 6201 Congdon Blvd, Duluth, MN 55804 USA;

  • 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; Clothianidin; lmidacloprid; Thiamethoxam; Surface water;

    机译：新烟碱;噻吩甲醚;吡虫啉;噻虫嗪;表面水;

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