Source | Kansai | Tohoku | Notes | Ref. | ||
---|---|---|---|---|---|---|
PFOA | PFOS | PFOA | PFOS | |||
Water | 19.9 | 4.9 | 0.4 | 0.3 | Calculated from tap water concentrations (GM) for Kansai and Tohoku | [17] |
Indoor dust | 8.9 | 2.0 | 8.9 | 2.0 | Calculated from vacuum cleaner dust concentrations (median) for Osaka | [37] |
Ambient air | 2.4 | 0.1 | 0.02 | 0.01 | Calculated from airborne dust concentrations (GM) for Kyoto and Iwate | [30] |
Food | 61.4 | 76.3 | 44.4 | 61.5 | Estimated from food duplicate concentrations (GM) for Osaka and Miyagi | [45] |
Total | 92.6 | 83.3 | 53.7 | 63.8 | Â | Â |