| Type of samples | Radium content (Bq∙kg−1) | Radon exhalation rate | |
| Mass (Bq∙Kg−1∙h−1) | Surface area (Bq∙m2∙h−1) | ||
| Soil | 240.25 ± 15.46 | 1.816 ± 1.34 | 16.18 ± 4.012 |
| Sand | 152.39 ± 11.35 | 1.1 ± 0.98 | 9.16 ± 2.83 |