Table 5A.

Levels of C-PCBs in human blood samples. All units were adjusted to ng/g, see footnotes.

Matrix	Country/population	Number of samples	PCB 91	PCB 95	PCB 132	PCB 136	PCB 149	PCB 153	PCB 183	Reference Year of sampling
Seruma	US/gen. pop. (NHANES)	1873					0.004d	0.14	0.01d	(Patterson et al. 2009) 2009
Plasmab	Canada/gen. pop. and non-H lymp	422						4.4	nd - 0.5	(Spinelli et al. 2007) 2007
Serumb	US/natives	753	nd-0.19	nd-0.32	nd-0.23	nd-0.16	nd-0.25c	6.7	nd-0.75	(DeCaprio et al. 2005) 2005
Seruma	US/natives	314					0.8–8.6	26–32	1.8–4.2	(Schaeffer et al. 2006) 2006
Serumb	US/sport fishermen	99						0.8c	0.06d	(Turyk et al. 2006) 2006
Serumb	US/occup. exp.	165		0.4–93c				0.2–90c	0.06–26c	(Wolff et al. 1992) 1992
Seruma,b	US/occup. exp.	52			0.05–4.2		0.16–11	0.32–23	0.14–6.9c	(Fait et al. 1989) 1989
	US/gen. pop.	56			0.07–7.8		0.15–5.5	0.17–6.1	0.05–2.4c
Seruma	Slovakia/gen. pop.	315		nd-0.3	0.0003–0.5	nd-0.9c	nd-1.2	0.4–65	0.3–5.3	(Jursa et al. 2006) 2006
Seruma,b	Romania/gen. pop.	2					0.13–2.9	0.7–3.8	0.02–0.6	(Covaci et al. 2001) 2001
Serumb	US/women gen. pop.	15			nd-0.06	0.004–0.2			0.01–0.05	(Whitcomb et al. 2005) 2005

Analytical techniques:

^aGC/MS or HRMS,

^bGC-ECD,

^cco-eluting with another congener(s),

^dgeometric mean;

Abbreviations: US – United States, nd - MDL or otherwise defined detection limit, where available; non-H. Lymph. – non-Hodginks lymphoma; gen. pop. – general population; occup. exp. – occupational exposure; data reexpression for the table: a) according to published data (Ward et al. 2000), the density of serum used was 1.026 g/ml, and the following units were assumed to be equivalent: ppb = ng/g, ng/ml = μg/L. The same assumption was made for blood plasma. b) The serum lipids content was calculated as 7 mg/g according to (Phillips et al. 1989) (factor x 0.007), and plasma lipids were calculated as 6 mg/ml according to (Michaels et al. 1960). The whole blood lipids were assumed to be same as plasma.