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Spatially Detailed Survey on Pollution by Multiple Perfluorinated Compounds in the Tokyo Bay Basin of Japan

机译：日本东京湾流域多种全氟化合物污染的空间详细调查

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摘要

Pollution from 35 perfluorinated compounds (PFCs) in the water of the Tokyo Bay basin was examined. The water in the basin contained relatively high levels of perfluorononanoate (PFNA), perfluorooctanoate (PFOA), and perfluorooctane sulfonate (PFOS) compared to the other PFCs, which were present at concentrations of 20.1 ng/L, 6.7 ng/L, and 5.8 ng/L, respectively. In contrast, the concentrations of their precursors and degradation products were an order of magnitude lower. Sewage treatment plant (STP) effluent in the area also contained high levels of PFNA compared with the river water samples (Mann-Whitney U-test, p < 0.0002). From a spatial aspect, increases in PFC pollution levels correlated with increased urbanization in the study area suggested that there are nonpoint source contributors to the PFC pollution in this area. Branched isomers of the PFCs were also quantified. Samples that contained high concentrations of perfluoroalkyl carboxy-lates (PFCA) showed lower proportions of its branched isomer. This indicates that the branched isomers are more prominent in the area with lower PFC pollution. This analysis was beneficial for estimating the individual contributions of different PFCA production processes. This survey provided new information on the sources, spatial distribution, and behavioral characteristics of PFC pollutants in this area.
机译：检查了东京湾流域水中35种全氟化合物（PFC）的污染。与其他PFC相比，盆地中的水含有相对较高的全氟壬酸（PFNA），全氟辛酸（PFOA）和全氟辛烷磺酸（PFOS），它们的浓度分别为20.1 ng / L，6.7 ng / L和5.8。 ng / L。相反，它们的前体和降解产物的浓度低一个数量级。与河水样品相比，该地区的污水处理厂（STP）废水中也含有高水平的PFNA（Mann-Whitney U检验，p <0.0002）。从空间角度看，研究区域中PFC污染水平的增加与城市化程度的提高有关，表明该区域中PFC污染有非点源贡献者。还对PFC的支链异构体进行了定量。包含高浓度全氟烷基羧酸盐（PFCA）的样品显示出较低的支链异构体比例。这表明，在PFC污染较低的地区，支链异构体更为突出。该分析有助于估算不同PFCA生产工艺的个体贡献。这项调查提供了有关该地区PFC污染物的来源，空间分布和行为特征的新信息。

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  • 来源
    《Environmental Science & Technology》 |2011年第7期|p.2887-2893|共7页
  • 作者

    Yasuyuki Zushi; Feng Ye; Mamoru Motegi; Kiyoshi Nojiri; Shigeo Hosono; Toshinari Suzuki; Yuki Kosugi; Kumiko Yaguchi; Shigeki Masunaga;

  • 作者单位

    Graduate School of Environment and Information Sciences, Yokohama National University, 79-7 Tokiwadai, Hodogaya,Yokohama 240-8501, Japan;

    Graduate School of Environment and Information Sciences, Yokohama National University, 79-7 Tokiwadai, Hodogaya,Yokohama 240-8501, Japan;

    Center for Environmental Science in Saitama, 914 Kamitanadare Kazo, Saitama Pref. 347-0115, Japan;

    Center for Environmental Science in Saitama, 914 Kamitanadare Kazo, Saitama Pref. 347-0115, Japan;

    Center for Environmental Science in Saitama, 914 Kamitanadare Kazo, Saitama Pref. 347-0115, Japan;

    Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakuninchou Shinjyuku Tokyo Pref. 169-0073, Japan;

    Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakuninchou Shinjyuku Tokyo Pref. 169-0073, Japan;

    Tokyo Metropolitan Institute of Public Health, 3-24-1 Hyakuninchou Shinjyuku Tokyo Pref. 169-0073, Japan;

    Graduate School of Environment and Information Sciences, Yokohama National University, 79-7 Tokiwadai, Hodogaya,Yokohama 240-8501, Japan;

  • 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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