Gastrointestinal Elimination of Perfluorinated Compounds Using Cholestyramine and Chlorella pyrenoidosa

Table 3

Mean levels of PFCs in serum prior to treatment and stool after CSM treatment.

PFC species	Pretreatment serum PFC species in ng/g; Mean (SD)		Stool PFC post-CSM in ng/g; Mean (SD)		Ratio: post-CSM stool: serum pre-treatment
	Female	Male	Female	Male	Female	Male
PFHxS	48.4 (34.7)	50.8 (28.3)	126 (222)	32 (19.5)	2.60	0.63
PFOS	26 (23.7)	29 (23.7)	11.3 (17.1)	8.2 (10.2)	0.43	0.28
PFOA	2.7 (1.6)	3.8 (1.3)	1.4 (0.76)	1.1 (0.41)	0.52	0.29
PFNA	0.34 (0.40)	0.36 (0.44)	0.5*	0.5*	N/A	N/A

∗All PFNA post-treatment stool levels below detection limit of 1 ng/g.