Beškoski Vladimir P, Yamamoto Katsuya, Yamamoto Atsushi, Okamura Hideo, Hayashi Mitsuru, Nakano Takeshi, Matsumura Chisato, Fukushi Keiichi, Wada Shinpei, Inui Hideyuki
University of Belgrade, Faculty of Chemistry, P.O. Box 51, Belgrade, Serbia; Research Center for Environmental Genomics, Kobe University, 1-1 Rokkodaicho, Nada-ku, Kobe, Hyogo 657-8501, Japan.
Hyogo Prefectural Institute of Environmental Sciences, 3-1-18 Yukihira-cho, Suma-ku, Kobe 654-0037, Japan.
Chemosphere. 2017 Mar;170:260-265. doi: 10.1016/j.chemosphere.2016.12.028. Epub 2016 Dec 10.
Perfluoroalkyl acids (PFAAs) including perfluoroalkyl sulfonates (PFSAs) and perfluoroalkyl carboxylates (PFCAs) were analyzed in sediment samples taken from Ajifu Waterway in Osaka city, from Osaka Bay, and from Kagoshima Bay, as well as in fifteen seawater samples collected from Osaka Bay and coastal waters of Western Japan. In all sediment samples, only PFCAs were detected, and the highest concentration was determined in Ajifu Waterway, where ΣPFAA was 58990 ng kg dry weight. The total concentrations of PFAAs in sea water samples ranged between the limit of quantification and 53.4 ng L, and perfluorohexanoic acid was the most prevalent and had the highest concentration of 37 ng L. The changes in the patterns and concentrations of PFAAs in Osaka Bay and coastal waters of Western Japan indicate that the PFAAs in surface waters are influenced by sources from Keihanshin Metropolitan Area, mainly the Yodo River basin, and the dilution effect which naturally occurs during their transport to the Pacific Ocean.
对取自大阪市阿治府水道、大阪湾和鹿儿岛湾的沉积物样本，以及从大阪湾和日本西部沿海水域采集的15份海水样本中的全氟烷基酸（PFAA）进行了分析，全氟烷基酸包括全氟烷基磺酸盐（PFSA）和全氟羧酸盐（PFCA）。在所有沉积物样本中，仅检测到全氟羧酸盐，阿治府水道的含量最高，全氟烷基酸总量为58990纳克/千克干重。海水样本中全氟烷基酸的总浓度在定量限和53.4纳克/升之间，全氟己酸最为普遍，浓度最高，为37纳克/升。大阪湾和日本西部沿海水域全氟烷基酸的形态和浓度变化表明，地表水的全氟烷基酸受到京阪神大都市地区（主要是淀川流域）的来源影响，以及在其向太平洋输送过程中自然发生的稀释作用影响。
