Table 1.
Estimated debromination rate constants for mono-, di-, and tri-BDEs. The observed rate constants (kobs) were normalized by the mass of nZVI (km) and by the surface area (kSA) of nZVI in the system.
| IUPAC No. | PBDE congener | kobs [1/d] | km [L/d·g] | kSA [L/d·m2] | Reference |
|---|---|---|---|---|---|
| BDE 1 | 2-monoBDE | 2.80 E-03 | 5.09 E-05 | 3.97 E-06 | This study |
| BDE 2 | 3-monoBDE | 3.40 E-03 | 6.18 E-05 | 4.82 E-06 | |
| BDE 3 | 4-monoBDE | 2.70 E-03 | 4.91 E-05 | 3.83 E-06 | |
| BDE 5 | 2,3-diBDE | 3.55 E-02 | 6.45 E-04 | 5.03 E-05 | |
| BDE 7 | 2,4-diBDE | 1.26 E-02 | 2.29 E-04 | 1.79 E-05 | |
| BDE 12 | 3,4-diBDE | 3.14 E-02 | 5.72 E-04 | 4.46 E-05 | |
| BDE 21 | 2,3,4-triBDE | 2.95 E-01 | 5.37 E-03 | 4.19 E-04 | |
| BDE 153 | 2,2′,4,4′,5,5′-hexaBDE | 4.32 E-01 | 3.14E-02 | 2.45E-03 | (8)a |
| BDE 183 | 2,2′,3,4,4′,5′,6-heptaBDE | 1.54 | 1.12E-01 | 8.71E-03 | |
| BDE 209 | DecaBDE | 6.67 | 4.85E-01 | 3.78E-02 | |
| BDE 7 | 2,4-diBDE | 1.80 E-03 | 3.56E-06 | 6.93E-05 | (10)b |
| BDE 28 | 2,4,4′-triBDE | 7.90 E-03 | 1.59E-05 | 3.10E-04 | |
| BDE 47 | 2,2′,4,4′-tetraBDE | 5.60 E-03 | 1.12E-05 | 2.19E-04 | |
| BDE 66 | 2,3′,4,4′-tetraBDE | 1.20 E-02 | 2.40E-05 | 4.69E-04 | |
| BDE 100 | 2,2′,4,4′,6-pentaBDE | 3.98 E-02 | 7.96E-05 | 1.55E-03 | |
| BDE 209 | DecaBDE | 1.41 E-01 | 2.83E-04 | 5.51E-03 | |
Note:
a
nZVI mass = 0.014 g/ml, Avg. size = 60 nm;
b
micro-ZVI mass = 0.5 g/ml, Avg. size = 15μm.