Table 3

Light and heavy congener serum concentrations and % contributions to total PCB

PCBs

subject 1

subject 2

subject 3

subject 4

subject 5

subject 6

subject mean

ref** mean

subject median

ref Median

Serum concentration (ng/g)

Light *

0.201

0.191

0.261

0.151

0.195

0.378

0.230

0.094

0.196

0.064

Heavy

1.66

1.91

0.788

1.36

1.57

8.33

2.61

1.19

1.80

0.949

Percent contribution

Light

10.8

9.08

24.9

10.0

11.0

4.34

11.7

6.54

9.82

6.320

Heavy

89.2

90.9

75.1

90.0

89.0

95.7

88.4

91.7

90.17

93.68

*Light is comprised of the sum of congeners 6–74; Heavy is comprised of the sum of congeners 84 to 209

** Reference PCB values are means for 5-year age groups from 358 men in the Greater Boston area. Referent subjects range from 18–51 years old.

Herrick et al. Environmental Health 2007 6:25   doi:10.1186/1476-069X-6-25