Table VI.
Trends in blood concentrations of POPs (µg/kg plasma lipid) in pregnant Icelandic women in their third trimester
| Reykjavik | All Iceland | All Iceland | Reykjavik | |
|---|---|---|---|---|
| 1995 | 1999 | 2004 | 2009 | |
| Mean age (range) | 30 (18–41) | 28.7 (20–42) | 30.3 (20–40) | 30.4 (21–43) |
| Sample size, mean parity | n=40; p=1.9 | n=39; p=1.9 | n=40; p=1.8 | n=33; p=1.7 |
| trans-Nonachlor | 12 (3.8–50) | 15 (6.4–47) | 7.1 (1.3–29) | 6.7 (3.6–15.5) |
| p,p’-DDE | 113 (42–514) | 100 (33–306) | 54 (19–226) | 36 (12.1–139) |
| PCB153 | 68 (26–158) | 60 (24–143) | 40 (19–98) | 34 (18–108) |
| PBDE47 | – | – | – | 1.7 (<1.3–21) |
| PBDE99 | – | – | – | <1.3 (<1.3–3.7) |
| PBDE100 | – | – | – | <1.3 (<1.3–5.0) |
| PBDE153 | – | – | – | <1.3 (<1.3–3.9) |
| PFOS | – | – | – | 6.2 (4.2–13)a |
| PFOA | – | – | – | 4.8 (1.4–40)a |
Data presented as geometric means (range). Lipid normalization of data in 1999 and 2004 based on average lipid concentrations from 1995. PFOS and PFOA in µg/L plasma.
a
n=10. For statistical purposes, values <1.3 (the limit of detection, LOD) were replaced by LOD/2. PBDE, polybrominated diphenyl ethers.