...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>The Science of the Total Environment >Mercury and methylmercury concentrations in high altitude lakes and fish (Arctic charr) from the French Alps related to watershed characteristics
【24h】

Mercury and methylmercury concentrations in high altitude lakes and fish (Arctic charr) from the French Alps related to watershed characteristics

机译：法国阿尔卑斯山高海拔湖泊和鱼类（北极红点）中的汞和甲基汞浓度与分水岭特征有关

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Total mercury (THg) and methylmercury (MeHg) concentrations were measured in the muscle of Arctic charr (Salvetinus alpinus) and in the water column of 4 lakes that are located in the French Alps. Watershed characteristics were determined (6 coverage classes) for each lake in order to evaluate the influence of watershed composition on mercury and methylmercury concentrations in fish muscle and in the water column. THg and MeHg concentrations in surface water were relatively low and similar among lakes and watershed characteristics play a major role in determining water column Hg and MeHg levels. THg muscle concentrations for fish with either a standardized length of 220 mm, a standardized age of 5 years or for individualuals did not exceed the 0.5 mg kg~' fish consumption advisory limit established for Hg by the World Health Organization (WHO, 1990). These relatively low THg concentrations can be explained by watershed characteristics, which lead to short Hg residence time in the water column, and also by the short trophic chain that is characteristic of mountain lakes. Growth rate did not seem to influence THg concentrations in fish muscles of these lakes and we observed no relationship between fish Hg concentrations and altitude. This study shows that in the French Alps, high altitude lakes have relatively low THg and MeHg concentrations in both the water column and in Arctic charr populations. Therefore, Hg does not appear to present a danger for local populations and the fishermen of these lakes.
机译：测量了北极鲑鱼（Salvetinus alpinus）的肌肉和法​​国阿尔卑斯山中4个湖泊的水柱中的总汞（THg）和甲基汞（MeHg）浓度。确定了每个湖泊的流域特征（6个覆盖等级），以评估流域组成对鱼肉和水柱中汞和甲基汞浓度的影响。地表水中的THg和MeHg浓度相对较低，并且在湖泊之间相似，并且流域特征在确定水柱中的Hg和MeHg水平方面起主要作用。标准长度为220 mm，标准年龄为5岁或个人的鱼类的肌肉中THg的浓度不超过世界卫生组织为汞所设定的0.5 mg / kg的鱼类食用建议极限（WHO，1990）。这些相对较低的THg浓度可以用流域特征来解释，这会导致Hg在水柱中的停留时间较短，也可以用山区湖泊特有的短营养链来解释。生长速率似乎并没有影响这些湖泊鱼肉中THg的浓度，我们观察到鱼类Hg浓度与海拔之间没有关系。这项研究表明，在法国阿尔卑斯山，高海拔湖泊的水柱和北极炭黑种群中的THg和MeHg浓度相对较低。因此，汞似乎对当地居民和这些湖泊的渔民没有危险。

著录项

  • 来源
    《The Science of the Total Environment》 |2011年第10期|p.1909-1915|共7页
  • 作者

    Nicolas Marusczak; Catherine Larose; Aurelien Dommergue; Serge Paquet; Jean-Sebastien Beaulne; Regine Maury-Brachet; Marc Lucotte; Rachid Nedjai; Christophe P. Ferrari;

  • 作者单位

    Laborawire de Claciologie et Geophysique de I'Environnement (LCCE) CNRS UMR 5183, 54, rue Moliire, Domain? Universitaire. B.P. 96, 38402 Saint Martin d'Hires. France,Politiques publiques. Action politique, Territoires (PACTE) CNRS UMR 5194, Universiti Pierre Mendis-France - Grenoble II, Institut d'ttudes Politiques de Grenoble, University Joseph Fourier - Grenoble I, France;

    Laborawire de Claciologie et Geophysique de I'Environnement (LCCE) CNRS UMR 5183, 54, rue Moliire, Domain? Universitaire. B.P. 96, 38402 Saint Martin d'Hires. France;

    Laborawire de Claciologie et Geophysique de I'Environnement (LCCE) CNRS UMR 5183, 54, rue Moliire, Domain? Universitaire. B.P. 96, 38402 Saint Martin d'Hires. France;

    Universte du Quebec a Montreal, GEOTOP, CP 8888, Succ Centre-Wile, Montreal (Quebec), Canada H3C 3P8;

    Universte du Quebec a Montreal, GEOTOP, CP 8888, Succ Centre-Wile, Montreal (Quebec), Canada H3C 3P8;

    University de Bordeaux UMR 5805 EPOC Avenue des Facultes, 33405 Talence, France;

    Universte du Quebec a Montreal, GEOTOP, CP 8888, Succ Centre-Wile, Montreal (Quebec), Canada H3C 3P8;

    Politiques publiques. Action politique, Territoires (PACTE) CNRS UMR 5194, Universiti Pierre Mendis-France - Grenoble II, Institut d'ttudes Politiques de Grenoble, University Joseph Fourier - Grenoble I, France;

    Laborawire de Claciologie et Geophysique de I'Environnement (LCCE) CNRS UMR 5183, 54, rue Moliire, Domain? Universitaire. B.P. 96, 38402 Saint Martin d'Hires. France;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    total mercury; methylmercury; lakes; arctic charr; french alps;

    机译：总汞甲基汞湖泊北极字符法国阿尔卑斯山;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号