Nuclide | World average (UNSCEAR 2008) | Fongo-Tongo (study area) | |||
---|---|---|---|---|---|
Concentration (Bq kg−1) | Dose rate (nGy h−1) | Concentration (Bq kg−1) | Dose rate (nGy h−1) | % contribution | |
226Ra | 33 | 25 | 124.85 | 28.58 | 15.40 |
232Th | 45 | 45 | 157.27 | 53.31 | 28.33 |
40K | 420 | 30 | 670.92 | 104.11 | 55.32 |