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首页> 外文期刊>Environmental Science & Technology >A Map of European Emissions and Concentrations of PFOS and PFOA
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A Map of European Emissions and Concentrations of PFOS and PFOA

机译：欧洲全氟辛烷磺酸和全氟辛烷磺酸排放量和浓度分布图

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摘要

A spatially distributed data set of measured concentrations of perfluorooctansulfonate (PFOS) and perfluorooctanoate (PFOA) was used, together with climatological averages of river flow, to estimate their overall aqueous emissions from the European Continent This estimate relies on the assumption that PFOA/S are conservative chemicals. PFOS correlates rather well with river basin population, and its emissions can be estimated by regression for nonmonitored catchments. As such, regression equations were derived in both linear and log-linear form, the latter explaining a much higher portion of variance. Unlike PFOS, PFOA discharges are strongly influenced by point emissions from industrial facilities; they only correlate with catchment population below a threshold of 0.5 tons per year, and point source industrial emissions cannot be neglected in the estimation of PFOA loads. The lumped loads of PFOA from diffuse and point sources are reasonably described by a single log-linear regression model as a function of population in the catchment likely owing to the fact that fluoropolymer industries located in highly populated catchments are more frequent as well. Overall, by using the log-linear models derived in this paper, PFOS and PFOA discharges along the whole European river network to coastal areas in Europe have been estimated for the year 2007 to be in the order of 20 and 30 tons per year, respectively.
机译：使用空间分布的全氟辛烷磺酸（PFOS）和全氟辛酸酯（PFOA）浓度数据集以及河流的气候平均数来估算欧洲大陆的总水体排放量。该估算基于以下假设：PFOA / S为保守化学品。全氟辛烷磺酸与流域人口有很好的相关性，可以通过对非监测流域的回归估算其排放。这样，可以以线性和对数线性形式导出回归方程，后者解释了方差更大的部分。与全氟辛烷磺酸不同，全氟辛烷磺酸的排放受到工业设施点排放的强烈影响。它们仅与每年低于0.5吨阈值的流域人口相关，在估算PFOA负荷时不能忽略点源工业排放。来自单个扩散源和点源的PFOA的集总负荷可以通过单个对数线性回归模型合理地描述为集水区人口的函数，这可能是由于位于人口稠密集水区的含氟聚合物行业也更加常见。总体而言，通过使用本文得出的对数线性模型，估计到2007年，整个欧洲河网向欧洲沿海地区的PFOS和PFOA排放量分别为每年20吨和30吨左右。 。

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  • 来源
    《Environmental Science & Technology》 |2009年第24期|9237-9244|共8页
  • 作者

    ALBERTO PISTOCCHI; ROBERT LOOS;

  • 作者单位

    European Commission, Joint Research Centre, Institute for Environment and Sustainability, Via Enrico Fermi, 21020 Ispra, Italy;

    European Commission, Joint Research Centre, Institute for Environment and Sustainability, Via Enrico Fermi, 21020 Ispra, Italy;

  • 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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