| Location | Average Concentration Bq/m3 | Reference |
| This Study (Kaya) | 28.47 |
|
| Ouagadougou | 26.90 ± 2.58 | Bambara et al., 2021 [4] |
| Banlieue du Ghana | 57 ± 39 | Kitson-Mills et al., 2019 [20] |
| Soudan (Kordufan) | 109.43 | Hajo et al., 2020 [21] |
| Soudan (Wad Elmahi) | 41 | Hajo et al., 2020 [21] |
| Marocco | 80 | Choukri et al., 2019 [22] |
| Beijing (China) | (42.0 ± 13.7) | Hao Wang et al., 2022 [23] |