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首页> 外文期刊>Environmental Science & Technology >Distribution of Perfluorinated Compounds in Aquatic Systems in The Netheriands
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Distribution of Perfluorinated Compounds in Aquatic Systems in The Netheriands

机译：全氟化合物在荷兰水生系统中的分布

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摘要

The distribution of 15 perfluorinated compounds (PFCs) among eel (Anguilla anguilla), sediment, and water was investigated for 21 locations in The Netherlands. Furthermore, for perfluorooctanesulfonate (PFOS), a 30 year time series was measured for three locations using historical eel samples. These historical samples revealed concentrations increasing by a factor of 2-4 until the mid-1990s, followed by a return to the initial levels. In the samples described here, PFOS dominated aqueous concentrations, ranging from 4.7 to 32 ng/L in water, from 0.5 to 8.7 ng/g in sediment and from 7 to 58 ng/g in eel filet Field-based sediment water distribution coefficients (K_D) were calculated and corrected for organic carbon content (K_(OC)), which reduced variability among samples. Log K_(OC) ranges were 2.3-3.7 for the C7-C9 carboxylic acids and 2.2-3.2 for the C4-C8 sulfonates. Bioaccumulation factors (log BAFs) for eel ranged from 1.09-3.26 for the C7-C9 carboxylic acids to 1.4-33 forthe C4-C8 sulfonates. Perfluoroalkyl chain length correlated well with both sorption and bioaccumulation factors. Magnitudes and trends in K_D or BAF appeared to agree well with previously published laboratory data. Results imply that PFCs are mainly present in water, which is important for PFC fate modeling and risk assessment.
机译：在荷兰的21个地点调查了15种全氟化合物（PFC）在鳗鱼（安圭拉安圭拉岛），沉积物和水中的分布。此外，对于全氟辛烷磺酸盐（PFOS），使用历史鳗鱼样品在三个地点测量了30年的时间序列。这些历史样本显示，直到1990年代中期，浓度增加了2-4倍，然后又恢复到初始水平。在这里描述的样品中，全氟辛烷磺酸占主导的水溶液浓度是：水中的4.7至32 ng / L，沉积物中的0.5至8.7 ng / g，鳗鱼的7至58 ng / g。计算K_D）并校正有机碳含量（K_（OC）），这减少了样品之间的变异性。 C7-C9羧酸的Log K_（OC）范围为2.3-3.7，C4-C8磺酸盐的Log K_（OC）范围为2.2-3.2。鳗鱼的生物蓄积因子（log BAF）范围从C7-C9羧酸的1.09-3.26到C4-C8磺酸盐的1.4-33。全氟烷基链长与吸附和生物蓄积因子都很好相关。 K_D或BAF的幅度和趋势似乎与先前发布的实验室数据非常吻合。结果表明，PFC主要存在于水中，这对于PFC命运模型和风险评估非常重要。

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  • 来源
    《Environmental Science & Technology》 |2010年第10期|P.3746-3751|共6页
  • 作者

    C. J. A. F. KWADIJK; P. KORYTAR; A. A. KOELMANS;

  • 作者单位

    Institute for Marine Resources and Ecosystem Studies (IMARES), Wageningen UR. P.O. Box 68, 1970 AB IJmuiden, The Netherlands;

    rnInstitute for Marine Resources and Ecosystem Studies (IMARES), Wageningen UR. P.O. Box 68, 1970 AB IJmuiden, The Netherlands;

    rnInstitute for Marine Resources and Ecosystem Studies (IMARES), Wageningen UR. P.O. Box 68, 1970 AB IJmuiden, The Netherlands Aquatic Ecology and Water Quality Management Group, Wageningen University, P.O. Box 47, 6700 AA Wageningen, The Netherlands;

  • 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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