Table 3.

PCB body burdens from the NTP rat studies and human epidemiological studies.

Study	PCB 118	PCB 126	PCB 153	Sums of PCB congeners
Animal Studies
NTP studies, measurements in ng/ml in blood^a	35.77	0.06391	57
NTP studies, per plasma equivalent, ng/ml^b,	47.57	0.085	76
Human studies^c
Abdelouahab et al. (2008)	n/a	n/a	Maximum 2.87 Median 0.48	(Mono-ortho) Maximum 1.33 Median 0.130 (Non-coplanar) Maximum 2.87 Median 0.79
Alvarez-Pedrerol et al. (2009)^d (two cohorts)	Below LOD (0.071 ng/ml)	n/a	Median in two cohorts, 0.27 and 0.42
Bloom et al. (2003)	Maximum 0.642, mean 0.151	n/a	Maximum 1.891 Mean 0.637
Chevrier et al. (2008)^d	Maximum 0.16, geometric mean 0.028	n/a	Maximum 0.76, geometric mean 0.045	(Mono-ortho) Maximum 0.97 Geometric mean 0.244 (All) Maximum 2.56 Geometric mean 0.52
Dallaire et al. (2009a)^d	Maximum 3.9 Geometric mean 0.18	n/a	Maximum 45.9 Geometric mean 1.4	(Mono-ortho) Maximum 6.8 Geometric mean 0.36 (All) Maximum 113 Geometric mean 5.0
Dallaire et al. (2009b)	n/a	n/a	Maximum 6.12 Geometric mean 0.89
Lopez-Espinosa et al. (2009)	n/a	n/a	n/a	(All) Maximum 14 Mean 1.3
Maervoet et al. (2007) ^e	95th percentile 0.27 Mean 0.12	n/a	95th percentile 0.73 Mean 0.27
Meeker et al. (2007)	95th percentile 0.18	n/a	95th percentile 0.19	95th percentile 2.65
	Geometric mean 0.06		Geometric mean 0.21	Geometric mean 1.08
Sala et al. (2001)	n/a	n/a	n/a	6.7 in workers
Turyk et al. (2007)	Median in two cohorts, 0.048 and 0.059	Median in two cohorts, 0.00012 and 0.00016	Median in two cohorts, 0.20 and 0.23

Listed values are for the highest PCB body burden measured for the lowest administered dose.

Concentrations in blood divided by blood:plasma partition coefficient of 0.75

Units are ng/ml or ng/g in plasma or serum. When data were reported for men and women separately, only data for women are listed.

Converted from a per-lipid basis using a value of 7.9 g lipid/liter of blood.

Converted from concentration in cord serum to concentration in maternal serum by dividing by 0.259 (see text).