Perfluorooctanoate and perfluorooctane sulfonate concentrations in surface waters in Japan
Saito, N; Koizumi, A; Yoshinaga, T; Harada, K; Inoue, K
| HERO ID | 5080915 |
|---|---|
| Material Type | Abstract |
| In Press | No |
| Year | 2004 |
| Title | Perfluorooctanoate and perfluorooctane sulfonate concentrations in surface waters in Japan |
| Authors | Saito, N; Koizumi, A; Yoshinaga, T; Harada, K; Inoue, K |
| Journal | Toxicologist |
| Volume | 78 |
| Page Numbers | 395-396 |
| Abstract | 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. |
| Is Certified Translation | No |
| Dupe Override | No |
| Is Public | Yes |
| Language Text | English |
| Relationship(s) |
|