Table 4.
nBFR values expressed as ng/g of dust, reported for each congener, in the different indoor environments (Columns 2–6). Columns 7 and 8 show the total average value of the domestic dust average (D1 and D2) and workplace dusts average (D3–D5). The Column 2–8 values were associated to a method RSD of 15%. Results are compared with other studies (last two columns) reported as median (min.–max.) concentrations.
| Compound | D1 (ng/g) | D2 (ng/g) | D3 (ng/g) | D4 (ng/g) | D5 (ng/g) | Houses Average (ng/g) | Workplaces Average (ng/g) | Fromme et al. [32] (ng/g) | de la Torre et al. [33] (ng/g) |
|---|---|---|---|---|---|---|---|---|---|
| TBBPA | 1 n.d. | 1 n.d. | 1 n.d. | 32320.10 | <248.2 | 32,320.1 | 44.1 (2.9–233) | ||
| TBPH | 182.9 | 464.5 | 64.5 | <44 | <44 | 323.7 | 64.5 | 20 (25–2274) | |
| TBB | 12.0 | 11.7 | 1 n.d. | 9.6 | 9.7 | 11.9 | 9.7 | 4.2 (<3.0–13.6) | |
| TBP | 26.4 | 51.7 | 16.7 | 788.4 | 54.4 | 39.0 | 286.5 | ||
| BTBPE | 1 n.d. | 1 n.d. | 17.6 | 124.7 | 26.2 | 56.2 | 7 (<10–34) | 1.67 (<0.07–26.9) | |
| DPTE | 1 n.d. | 1 n.d. | 5.4 | 58.1 | 1 n.d. | 31.7 | |||
| ATE | 1 n.d. | 1 n.d. | 14.5 | 1 n.d. | 1 n.d. | 14.5 | |||
| HBB | 1 n.d. | 1 n.d. | 28.3 | 24.2 | 138.2 | 63.6 | 0.36 (<0.003–2.11) | ||
| HCDBCO | 32.0 | 1 n.d. | 40.4 | 1 n.d. | 1 n.d. | 32.0 | 40.4 | ||
| PBBA | 6.4 | 4.6 | 14.2 | 15.8 | 1 n.d. | 5.5 | 15.0 | ||
| PBEB | <2.2 | <2.2 | 1 n.d. | 4.1 | <2.2 | 4.1 | 0.06 (<0.003–0.25) | ||
| TBCO | 1 n.d. | 1 n.d. | <26.7 | <26.7 | 40.7 | 40.7 | |||
| TBECH | 41.8 | 33.7 | 38.3 | 41.5 | 228.7 | 37.7 | 102.8 | ||
| 2 ΣnBFRs | 301.4 | 566.2 | 239.9 | 33386.5 | 497.8 | 433.8 | 11,374.7 |
Values between LOD and LOQ were considered positive and reported as <LOQ value. 1 n.d., not detected. 2 ΣnBFRs is the sum of nBFR concentrations.