| Location(RBM) | D (nGy∙h−1) | AEDE (µSv∙y−1) | Raeq (Bq∙kg−1) | Hex | Reference |
| River Benue Makurdi | 19.42 | 23.82 | 37.16 | 0.10 | Present study |
| Charfassion Island, Bhola, Banglandes | 58.61 | 0.07 | 120.93 | - | Nizam et al., 2013 |
| Coastline of Erongo Region Namibia | 114.41 | 339.36 | - | - | Onjefu et al., 2016 |
| Worldwide Average | 57 | 70 | <370 | <1 | UNSCEAR, 2000 |