Table 2.
Initial nuclide vectors for three NPP fallout events and one fictious NPP release, normalized to the initial fallout of 137Cs (Adep,i/Adep,Cs-137).
| Nuclide | Chernobyl 1 | Chernobyl 2 | Fukushima | Swedish NPP |
|---|---|---|---|---|
| Swedish Chernobyl fallout38 | Chernobyl fallout in Brjansk area, Russia11,39 | Fukushima release Northern trace12 | Swedish NPP release40 | |
| 110mAg | 0 | 0 | 0.0028 | 0.00101 |
| 140Ba | 0.8118 | 0.72 | 0 | 0.0403 |
| 82Br | 0 | 0 | 0 | 0.0133 |
| 144Ce | 0.058 | 0.26 | 0 | 0 |
| 134Cs | 0.575 | 0.54 | 1 | 1.47 |
| 136Cs | 0.231 | 0.27 | 0.17 | 0 |
| 137Cs + 137mBa | 1 | 1 | 1 | 1 |
| 131I | 8.04 | 11 | 11.5 | 13.1 |
| 132I | 0 | 0 | 0 | 4.37 |
| 133I | 0 | 0 | 0 | 3.25 |
| 135I | 0 | 0 | 0 | 0.0172 |
| 140La** | 0.818 | 0.84 | 0 | 0.0274 |
| 99Mo | 0.181 | 0 | 0 | 0.0307 |
| 95Nb** | 0.0403 | 0.064 | 0 | 0 |
| 97Nb | 0 | 0 | 0 | 0 |
| 144Pr** | 0.058 | 0.26 | 0 | 0 |
| 103Ru | 0.425 | 1.68 | 0 | 0 |
| 106Ru + 106Rh | 0.133 | 0.5 | 0 | 0 |
| 125Sb | 0 | 0 | 0 | 0.00217 |
| 127Sb | 0 | 0 | 0 | 0.0125 |
| 89Sr | 0 | 4.25 | 0 | 0 |
| 90Sr + 90Y | 0 | 0.5 | 0 | 0 |
| 99mTc | 0 | 0 | 0 | 0.0297 |
| 131mTe + 129mTe + 129Te | 0 | 0 | 1.1 | 0.325 |
| 132Te | 0 | 0 | 0 | 4.24 |
| 132Te + 132I* | 5.19 | 16.6 | 8 | 0 |
| 95Zr | 0.00719 | 0.065 | 0 | 0 |
*In several publications the initial ground deposition of the fission products 132Te and 132I is reported in terms of 132Te. (T½ = 3.2 d) assuming secular equilibrium with 132I (T½ = 0.096 d).
**Activities of 95Nb, 140La and 144Pr will all accumulate until reaching transient equilibrium with their mother nuclides 95Zr, 140Ba and 144Ce, respectively.