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首页> 外文期刊>Environmental Science & Technology >Increasing Concentrations of Perfluoroalkyl Acids in Scandinavian Otters (Lufra lutra) between 1972 and 2011: A New Threat to the Otter Population?
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Increasing Concentrations of Perfluoroalkyl Acids in Scandinavian Otters (Lufra lutra) between 1972 and 2011: A New Threat to the Otter Population?

机译：1972年至2011年间斯堪的纳维亚水獭（Lufra lutra）中全氟烷基酸浓度的增加：对水獭种群的新威胁？

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摘要

Liver samples from 140 otters (Lutra lutra) from Sweden and Norway were analyzed for 10 perfiuoroalkyl carboxyuc acids (PFCAs; C6-C15), 4 perfluoroalkane sulfonic acids (PFSAs; C4,C6,C8,C10) and perfluorooctane sulfonamide (FOSA). Perfluorooctane sulfonic acid (PFOS) was the dominant compound accounting for approximately 80% of the fluorinated contaminants and showing concentrations up to 16 μg/g wet weight. Perfluorononanoic acid (PFNA) was the dominant PFCA (up to 640 ng/g wet weight) closely followed by the C10 and C11 homologues. A spatial comparison between otters from southwestern Norway, southern and northern Sweden sampled between 2005 and 2011 revealed that the samples from southern Sweden had generally the largest contaminant load, but two PFCAs and FOSA were higher concentrated in the Norwegian samples. A temporal trend study was performed on otters from southern Sweden collected between 1972 and 2011. Seven PFCAs (C8-C14), PFOS and perfluorodecane sulfonic acid (PFDS) showed significantly increasing trends with doubling times between 5.5 and 13 years. The PFCAs also showed significantly increasing trends over the period 2002 to 2011. These findings together with the exceptionally high liver concentrations of PFOS are of great concern for the Scandinavian otter populations.
机译：分析了来自瑞典和挪威的140只水獭（Lutra lutra）的肝脏样品中的10种全氟烷基羧酸（PFCA; C6-C15），4种全氟烷磺酸（PFSA; C4，C6，C8，C10）和全氟辛烷磺酰胺（FOSA）。全氟辛烷磺酸（PFOS）是占主导地位的化合物，约占氟化污染物的80％，其浓度最高为16μg/ g湿重。全氟壬酸（PFNA）是主要的PFCA（湿重高达640 ng / g），紧随其后的是C10和C11同源物。挪威西南部水獭，瑞典南部和北部水獭在2005年至2011年之间进行的空间比较显示，瑞典南部的水样总体上具有最大的污染物负荷，但挪威的样品中有两个PFCA和FOSA的浓度更高。对从1972年至2011年收集的来自瑞典南部的水獭进行了时间趋势研究。七个PFCA（C8-C14），PFOS和全氟癸烷磺酸（PFDS）呈显着增加的趋势，倍增时间在5.5到13年之间。全氟辛烷磺酸在2002年至2011年期间也显示出显着增加的趋势。这些发现以及全氟辛烷磺酸的肝脏异常高浓度使斯堪的纳维亚水獭种群极为关切。

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  • 来源
    《Environmental Science & Technology》 |2013年第20期|11757-11765|共9页
  • 作者

    Anna Roos; Urs Berger; Ulf Jarnberg; Jiska van Dijk; Anders Bignert;

  • 作者单位

    Department of Contaminant Research, Swedish Museum of Natural History, PO Box 50007, SE-104 05 Stockholm, Sweden Department of Environmental Toxicology, Uppsala University, Norbyvaegen 18A, SE-752 36 Uppsala, Sweden;

    Department of Applied Environmental Science (ITM), Stockholm University, SE-106 91 Stockholm, Sweden;

    Department of Applied Environmental Science (ITM), Stockholm University, SE-106 91 Stockholm, Sweden;

    Norwegian Institute for Nature Research (NINA), NO-7485 Trondheim, Norway;

    Department of Contaminant Research, Swedish Museum of Natural History, PO Box 50007, SE-104 05 Stockholm, Sweden;

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