Environmental and biological monitoring of persistent fluorinated compounds in Japan and their toxicities

Table 4 Estimates of adult exposures (ng/day) to PFOA and PFOS

Source	Kansai		Tohoku		Notes	Ref.
Source	PFOA	PFOS	PFOA	PFOS	Notes	Ref.
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

ISSN: 1347-4715