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首页> 外文期刊>Environmental Science & Technology >Relative Decay of Fecal Indicator Bacteria and Human-Associated Markers: A Microcosm Study Simulating Wastewater Input into Seawater and Freshwater
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Relative Decay of Fecal Indicator Bacteria and Human-Associated Markers: A Microcosm Study Simulating Wastewater Input into Seawater and Freshwater

机译：粪便指示剂细菌和人类相关标记的相对衰减：微观研究模拟废水输入到海水和淡水中

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摘要

Fecal contaminations of inland and coastal waters induce risks to human health and economic losses. To improve water management, specific markers have been developed to differentiate between sources of contamination. This study investigates the relative decay of fecal indicator bacteria (FIB, Escherichia coli and enterococci) and six human-associated markers (two bacterial markers: Baderoidales HF183 (HF183) and Bifidobacterium adolescentis (BifAd); one viral marker: genogroup Ⅱ F-specific RNA bacteriophages (FRNAPH II); three chemical markers: caffeine and two fecal stanol ratios) in freshwater and seawater microcosms seeded with human wastewater. These experiments were performed in darkness, at 20 ℃ and under aerobic conditions. The modeling of the decay curves allows us (ⅰ) to compare FIB and markers and (ⅱ) to classify markers according to their persistence in seawater (FRNAPH II < HF183, stanol ratios < BifAd, caffeine) and in freshwater (HF183, stanol ratios < FRNAPH II < BifAd < caffeine). Although those results depend on the experimental conditions, this study represents a necessary step to develop and validate an interdisciplinary toolbox for the investigation of the sources of fecal contaminations.
机译：内陆和沿海水域的粪便污染给人类健康和经济损失带来风险。为了改善水管理，已开发出特定的标记来区分污染源。这项研究调查了粪便指示细菌（FIB，大肠杆菌和肠球菌）和六个人类相关标记（两个细菌标记：Baderoidales HF183（HF183）和青春双歧杆菌（BifAd））的相对衰变；一个病毒标记：ⅡF基因组特异性RNA噬菌体（FRNAPH II）；三种化学标记：咖啡因和两个粪便甾烷醇比）存在于人类废水中注入的淡水和海水微观世界中。这些实验是在黑暗中，20℃和有氧条件下进行的。衰减曲线的建模使我们（ⅰ）可以比较FIB和标记物，并且（ⅱ）可以根据它们在海水（FRNAPH II

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  • 来源
    《Environmental Science & Technology》 |2012年第4期|p.2375-2382|共8页
  • 作者

    L. Jeanneau; O. Solecki; N. Wery; E. Jarde; M. Gourmelon; P. -Y. Communal; A. Jadas-Hecart; M. -P. Caprais; G. Gruau; A. -M. Pourcher;

  • 作者单位

    CNRS, UMR6118 Geosciences Rennes, Rennes, France;

    CEMAGREF, Rennes, France;

    INRA, UR0050, Laboratoire de Biotechnologie de l'Environnement, Narbonne, France;

    CNRS, UMR6118 Geosciences Rennes, Rennes, France;

    IFREMER, EMP, Laboratoire de Microbiologie, Plouzane, France;

    Universite d'Angers, Angers, France;

    Universite d'Angers, Angers, France;

    IFREMER, EMP, Laboratoire de Microbiologie, Plouzane, France;

    CNRS, UMR6118 Geosciences Rennes, Rennes, France;

    CEMAGREF, Rennes, France;

  • 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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  • 正文语种 eng
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