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首页> 外文期刊>Environmental Science & Technology >Bifenthrin Causes Toxicity in Urban Stormwater Wetlands: Field and Laboratory Assessment Using Austrochiltonia (Amphipoda)
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Bifenthrin Causes Toxicity in Urban Stormwater Wetlands: Field and Laboratory Assessment Using Austrochiltonia (Amphipoda)

机译：联苯菊酯在城市雨水湿地中引起毒性：使用Austrochiltonia（两栖动物）进行田间和实验室评估

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Stormwater wetlands are engineered to accumulate sediment and pollutants from stormwater and provide environmental value to urban environments. Therefore, contaminated sediment risks causing toxicity to aquatic fauna. This research identifies contaminants of concern in urban wetland sediments by assessing sediment toxicity using the amphipod Austrochiltonia subtenuis. Sediments from 98 wetlands were analyzed for contaminants, and laboratory bioassays were performed with A subtenuis. Wild Austrochiltonia spp. were also collected from wetlands to assess field populations. Random forest modeling was used to identify the most important variables predicting survival, growth, and field absence of Austrochiltonia spp. Bifenthrin was the most frequently detected pesticide and also the most important predictor of Austrochiltonia spp. responses. Copper, permethrin, chromium, triclosan, and lead were also important The median lethal effect concentration (LC50) of bifenthrin to laboratory-based A subtenuis (1.09 (±0.08) μg/gOC) exposed to wetland sediments was supported by a bifenthrin-spiked sediment experiment, indicating A subtenuis is a suitable test species. Furthermore, Austrochiltonia spp. were absent from all sites that exceeded the calculated bifenthrin LC50, demonstrating the impact of this contaminant on wild populations. This research demonstrates the sensitivity of Austrochiltonia spp. to urban sediment contamination and identifies bifenthrin as a contaminant of concern in urban wetlands.
机译：雨水湿地经过精心设计，可以积累雨水中的沉积物和污染物，并为城市环境提供环境价值。因此，受污染的沉积物可能对水生动物造成毒性。这项研究通过使用两足动物Austrochiltonia subtenuis评估沉积物毒性来确定城市湿地沉积物中令人关注的污染物。分析了来自98个湿地的沉积物中的污染物，并使用A subtenuis进行了实验室生物测定。野生的Austrochiltonia spp。还从湿地收集来评估野外种群。随机森林模型被用来识别最重要的变量，以预测Austrochiltonia spp的存活，生长和田间缺席。联苯菊酯是最常被检测到的杀虫剂，也是最主要的奥氏囊菌的预测因子。回应。铜，苄氯菊酯，铬，三氯生和铅也很重要联苯菊酯加标为联苯菊酯对暴露于湿地沉积物的实验室基A稀释液（1.09（±0.08）μg/ gOC）的中位致死浓度（LC50）。沉积物实验，表明A subtenuis是一个合适的测试物种。此外，Austrochiltonia spp。超出联苯菊酯LC50的所有计算值均不存在，表明该污染物对野生种群的影响。这项研究证明了Austrochiltonia spp的敏感性。对城市沉积物的污染进行分析，并确定联苯菊酯是城市湿地中令人关注的污染物。

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  • 来源
    《Environmental Science & Technology》 |2017年第12期|7254-7262|共9页
  • 作者

    Katherine J. Jeppe; Claudette R. Kellar; Stephen Marshall; Valentina Colombo; Georgia M. Sinclair; Vincent Pettigrove;

  • 作者单位

    Centre for Aquatic Pollution Identification and Management (CAPIM), School of BioSciences, The University of Melbourne, Royal Parade, Parkville, Australia 3010;

    Centre for Aquatic Pollution Identification and Management (CAPIM), School of BioSciences, The University of Melbourne, Royal Parade, Parkville, Australia 3010;

    Centre for Aquatic Pollution Identification and Management (CAPIM), School of BioSciences, The University of Melbourne, Royal Parade, Parkville, Australia 3010;

    Centre for Aquatic Pollution Identification and Management (CAPIM), School of BioSciences, The University of Melbourne, Royal Parade, Parkville, Australia 3010;

    Centre for Aquatic Pollution Identification and Management (CAPIM), School of BioSciences, The University of Melbourne, Royal Parade, Parkville, Australia 3010;

    Centre for Aquatic Pollution Identification and Management (CAPIM), School of BioSciences, The University of Melbourne, Royal Parade, Parkville, Australia 3010;

  • 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);
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