Table 1.
Limit of detection, detection rates, geometric means, and percentile values of urinary dialkylphosphate concentrations among pregnant women in Japan
| Compounds | LOD | > LOD (%) | GM | Min. | Percentile | Max. | Between-variance | Within-variance | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 5th | 25th | 50th | 75th | 95th | ||||||||
| DMP | 0.06 | 87 | 1.5 | < LOD | 0.09 | 0.60 | 1.8 | 4.7 | 18 | 81 | 14 | 1.4 |
| DMTP | 0.10 | 98 | 5.3 | < LOD | 0.41 | 2.0 | 5.6 | 17 | 54 | 332 | 10 | 1.5 |
| DMDTP | 0.63 | 66 | 0.94 | < LOD | < LOD | < LOD | 0.73 | 1.7 | 4.7 | 12 | 2.6 | 0.44 |
| DEP | 0.47 | 99 | 3.6 | < LOD | 0.69 | 1.9 | 3.4 | 6.5 | 21 | 153 | 4.8 | 0.56 |
| DETP | 0.02 | 100 | 0.73 | 0.11 | 0.16 | 0.29 | 0.57 | 1.6 | 7.17 | 102 | 7.4 | 0.79 |
| DEDTP | 0.02 | 67 | 0.05 | < LOD | < LOD | < LOD | 0.05 | 0.12 | 0.41 | 2.4 | 8.0 | 0.79 |
| ΣDMAPs | – | – | 70 | 4.0 | 7.9 | 29 | 64 | 177 | 535 | 2621 | 7.2 | 0.89 |
| ΣDEAPs | – | – | 30 | 2.9 | 6.3 | 15 | 28 | 53 | 178 | 1005 | 5.1 | 0.53 |
| ΣDAP | – | – | 110 | 8.7 | 18 | 51 | 100 | 249 | 648 | 2742 | 5.9 | 0.66 |
DMP dimethylphosphate (μg/L); DMTP dimethylthiophosphate (μg/L); DMDTP dimethyldithiophosphate (μg/L); DEP diethylphosphate (μg/L); DETP diethylthiophosphate (μg/L); DEDTP diethyldithiophosphate (μg/L); ΣDMAPs sum of DMP, DMTP, and DMDTP (nmol/L); ΣDEAPs sum of DEP, DETP, and DEDTP (nmol/L); ΣDAP sum of six DAPs (nmol/L); LOD limit of detection; > LOD detection rate (%); GM geometric mean; Min. minimum value; Max. maximum value