Table 2.
Levels of PBDEs, PCBs, selenium, mercury, lead, cadmium and manganese in early pregnancy (N = 349)
| % of detected values | 25th percentile | 50th percentile | 75th percentile | Maximum | |
|---|---|---|---|---|---|
| PBDE congeners (ng/mL) | |||||
| PBDE-47 | 100 | 0.07 | 0.12 | 0.25 | 2.74 |
| PBDE-99 | 95 | 5.10−3 | 0.01 | 0.03 | 0.48 |
| PBDE-100 | 77 | 4.10−3 | 7.10−3 | 0.01 | 0.36 |
| PBDE-153 | 79 | 8.10−3 | 0.02 | 0.05 | 0.39 |
| Σ PBDEs | 0.10 | 0.19 | 0.34 | 3.63 | |
| PBDE congeners (ng/g of lipids) | |||||
| PBDE-47 | 10.78 | 21.23 | 40.82 | 548.00 | |
| PBDE-99 | 0.76 | 1.93 | 5.44 | 96.00 | |
| PBDE-100 | 0.66 | 1.32 | 2.44 | 81.63 | |
| PBDE-153 | 1.08 | 2.44 | 8.97 | 85.33 | |
| Σ PBDEs | 17.08 | 32.99 | 59.63 | 726.00 | |
| PCBs (ng/g of lipid)a | |||||
| PCB-138 | 93 | 2.29 | 4.25 | 10.41 | 178.04 |
| PCB-153 | 99 | 4.55 | 8.02 | 19.80 | 410.43 |
| PCB-180 | 100 | 2.02 | 4.11 | 9.02 | 90.91 |
| Σ PCBs | 10.91 | 18.87 | 42.80 | 455.78 | |
| Metalsb | |||||
| Manganese (ng/mL) | 100 | 7.70 | 9.35 | 11.55 | 32.45 |
| Mercury (ng/mL) | 85 | 0.38 | 0.62 | 1.01 | 6.83 |
| Lead (ng/mL) | 100 | 6.21 | 8.28 | 10.35 | 64.17 |
| Cadmium (ng/mL) | 100 | 0.11 | 0.22 | 0.36 | 6.04 |
Abbreviations: PBDE(s) polybrominated diphenyl ether(s), ΣPBDE total PBDEs, PCB(s) polychlorinated biphenyl(s), ΣPCBs total PCBs
aMissing values for PCBs, n = 2
bMissing value for at least one metal (n = 57)