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5080915 
Journal Article 
Abstract 
Perfluorooctanoate and perfluorooctane sulfonate concentrations in surface waters in Japan 
Saito, N; Koizumi, A; Yoshinaga, T; Harada, K; Inoue, K 
2004 
1 
Toxicologist
ISSN: 0731-9193 
78 
395-396 
English 
is related to other part(s) 1289982 Perfluorooctanoate and perfluorooctane sulfonate concentrations in surface water in Japan
Perfluorooctanoate (PFOA) and perfluorooctane sulfonate (PFOS) are Pops widely used in Japan.We analyzed their concentrations in surface water samples collected from all over Japan. Methods: Water samples were collected from rivers, coastal sea waters and tap waters. For all sampling, a two-L sample was collected. Samples were passed through the Presep-C Agri column at a flow rate of 10 mL /min using a Waters Concentrator System (Concentrator Plus, Waters, Tokyo, Japan). Presep-C cartridges were then eluted with 1.5 mL of methanol and concentrated at room temperature. The methanol extracts were chromatographed using HPLC and Mass spectra were taken on an LC/MS.The fragment ions for PFOA m/z 413 (C7F15CO2-) and for PFOS m/z 499 (C8F17SO3-) were monitored for quantification. Results and discussion: The lowest limits of detection (LOD) (ng/L) were 0.06 for PFOA and 0.04 for PFOS. The lowest limits of quantification (LOQ) (ng/L) were 0.1 for both analytes. The levels [geometric mean (GM); geometric standard deviation (GS)] (ng/L) of PFOA and PFOS in the surface waters were GM (GS): 0.97 (3.06) and 1.19 (2.44) for Hokkaido-Tohoku (n=16); 2.84(3.56) and 3.69 (3.93) for Kanto (n=14); 2.50 (2.23) and 1.07 (2.36) for Chubu (n=17); 21.5 (2.28) and 5.73 (3.61) for Kinki (n=8); 1.51 (2.28) and 1.00 (3.42) for Chugoku (n=9); 1.93 (2.40) and 0.89 (3.09) for Kyushu-Shikoku (n=15). The GM of PFOA in Kinki was significantly higher than in other areas (ANOVA p and lt;0.01). Systematic searches of Yodo and Kanzaki Rivers revealed two potential sources, a public-water-disposal site for PFOA and an airport for PFOS. The former was estimated to release 18 kg of PFOA/day. PFOA in drinking water in Osaka city [40 (1.07) ng/L] was significantly higher than in other areas. The present study confirms that a large amount of PFOA is produced and released in Kink, and causes drinking water contamination.