| Sample No. | Sample Code | Radon Concentration (Bq∙m−3) | |
| Mean | Uncertainty | ||
| 1 | F1 | 1292.23* | 219.87 |
| 2 | F2 | 954.60 | 190.55 |
| 3 | F3 | 1166.63* | 410.44 |
| 4 | F4 | 976.31* | 244.29 |
| 5 | F5 | 1335.70 | 366.30 |
| 6 | F6 | 381.10 | 220.15 |
| 7 | F7 | 1335.70 | 366.30 |
| 8 | F8 | 1716.80 | 653.05 |
| 9 | F9 | 573.50* | 196.11 |