Table 2.
Estimated effective doses for inhabitants of the four high natural radiation background.
| Belokurikha, Altai |
Kolyvan, Novosibirsk |
Zhuhai, Guangdong |
Echassières, Auvergne |
|
|---|---|---|---|---|
| External dose, mSv y−1 | ||||
| Average | 3.1 | 4.4 | 1.6 | 1.8 |
| Min | 0.8 | 1.3 | 0.5 | 0.7 |
| Max | 3.5 | 5.3 | 2.6 | 2.2 |
| Standard deviation | 1.1 | 1.6 | 0.6 | 0.6 |
| Outdoor 222Rn Inhalation, mSv y−1 | ||||
| Average | 5.3 | 8.6 | 7.3 | 3.8 |
| Min | 2.2 | 2.3 | 0.5 | 0.4 |
| Max | 8.4 | 25.2 | 28.1 | 7.5 |
| Standard deviation | 1.9 | 3.2 | 2.7 | 1.1 |
| Indoor 222Rn Inhalation, mSv y−1 | ||||
| Average | 7.1 | 10.0 | 3.5 | n.d. |
| Min | 2.0 | 1.0 | 0.5 | n.d. |
| Max | 12.3 | 27.3 | 24.0 | n.d. |
| Standard deviation | 2.5 | 3.8 | 1.1 | n.d. |
| Effective dose, mSv y−1 (222Rn inhalation + External irradiation) | ||||
| Average | 15.5 | 23.0 | 12.4 | 5.6 |
| Min | 5.0 | 4.6 | 1.5 | 1.1 |
| Max | 24.2 | 57.8 | 54.7 | 9.7 |
| Standard deviation | 5.5 | 8.6 | 4.4 | 1.7 |
n.d., no data.