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Table 3
Summary of annual radon concentration at different storey levels.
| Storey Level | |||||
|---|---|---|---|---|---|
| Basement | Ground | Floor 1 | Floor 2 | Floor 3 | |
| NR | 3 | 48 | 28 | 21 | 13 |
| Range (Bq/m3) | 223.5–374.5 | 58.4–533.7 | 46.4–101.6 | 19.3–67.5 | 13.6–48.6 |
| Median | 344.0 | 233.0 | 63.1 | 41.9 | 28.8 |
| AM | 314.2 ± 15.6 | 256.2 ± 12.6 | 52.0 ± 2.4 | 36.0 ± 1.6 | 31.0 ± 1.4 |
| GM | 306.7 | 237.2 | 46.8 | 33.1 | 29.6 |
| GSD | 13.8 | 9.7 | 4.1 | 2.8 | 1.2 |
| % NR > 100 | 0 | 71.2 | 0.4 | 0 | 0 |
| % NR > 200 | 67 | 56.3 | 7.7 | 0 | 0 |
| % NR > 400 | 33 | 20.8 | 0 | 0 | 0 |
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