Table 4.
Statistical data for comparison of radon concentration in different floors
| Season | Floor type | No* | Radon concentration [Bq m− 3] | ||||
|---|---|---|---|---|---|---|---|
| Mean ± SD * | Min | Max | Median | G.M * | |||
| Summer | Basement | 8 | 9.25 ± 6.04 | 3 | 23 | 8 | 6.35 |
| Ground floor | 18 | 35.78 ± 40.35 | 3 | 145 | 18.5 | 16.66 | |
| 1st floor | 9 | 18.89 ± 18.45 | 6 | 50 | 14 | 9.69 | |
| Winter | Basement | 8 | 23 ± 12.89 | 6 | 47 | 21 | 17.96 |
| Ground floor | 18 | 52.94 ± 76.89 | 3 | 322 | 25 | 24.07 | |
| 1st floor | 9 | 38.78 ± 38.35 | 8 | 137 | 28 | 24.49 | |
*No = Number of floor types, G.M = Geometrical mean, SD = Standard deviation