Table 1:

Descriptive statistics for PFASs.

	Dust (ng/g) (n=49)					Serum (ng/ml) (n=85)
	25th	50th	75th	95th	% detect	25th	50th	75th	95th	% detect
PFOA	0.34	0.76	1.74	3.37	80	0.75	1.01	1.44	2.14	92
PFNA	<LOD	<LOD	0.41	1.93	35	1.44	2.21	4.18	7.35	99
PFDA	<LOD	<LOD	<LOD	2.16	24	<LOD	<LOD	0.66	1.06	39
PFUnDA	<LOD	<LOD	<LOD	0.38	10	<LOD	0.72	1.04	1.72	72
PFHxS	<LOD	<LOD	0.41	3.13	27	<LOD	<LOD	1.07	2.74	32
PFOS	<LOD	1.40	3.62	23.56	71	3.03	4.55	6.50	12.32	99

LOD=level of detection; % detect=percent of samples above.