Table 2.

Plasma concentrations of 8 perfluoroalkyl and polyfluoroalkyl substances in our sample

Perfluoroalkyl substances	Abbreviated Name	% > LOD	Plasma concentration (ng/ml) by percentile
			25th	50th	75th
Perfluorooctanoic acid	PFOA	99.9	4.95	6.98	9.54
Perfluorooctane sulfonate	PFOS	100	1.81	2.38	3.23
Perfluorononanoic acid	PFNA	100	0.50	0.64	0.83
Perfluoroundecanoic acid	PFUA	99.9	0.29	0.40	0.53
Perfluorodecanoic acid	PFDA	99.1	0.23	0.36	0.54
Perfluorohexane sulfonate	PFHxS	100	0.132	0.16	0.20
Perfluorododecanoic acid	PFDoA	90.4	0.069	0.094	0.13
Perfluorobutane sulfonate	PFBS	97.2	0.037	0.047	0.061

LOD (ng/ml): PFOSA (0.12), PFHpA (0.03), PFOS (0.09), PFNA (0.02), PFHxS (0.02)