Table 3.
Annual effective dose to adult arising from U ingestion (consuming 2 L of water daily) through well water in each settlement
| Settlement | Analyzed number of samples | Range | Geometric mean | Effective dose (mSv/y) | ||
|---|---|---|---|---|---|---|
| 238U (mBq/L) | 238U (mBq/L) | 234U (mBq/L) | 235Ua (mBq/L) | |||
| Dolon | 9 | 45.1–197.9 | 117.3 | 177.9 | 5.4 | 10.3 |
| Cheryomocyki | 4 | 22.6–42.3 | 28.9 | 41.1 | 1.3 | 2.4 |
| Bodene | 3 | 114.2–144.3 | 132.1 | 377.4 | 6.1 | 18.0 |
| Sarzhal | 6 | 127.8–213.9 | 167.3 | 365.4 | 7.7 | 18.7 |
| Kainar | 2 | 3.56–4.14 | 3.8 | 25.3 | 0.2 | 1.0 |
| Karaul | 7 | 48.6–355.6 | 94.6 | 181.9 | 4.4 | 9.8 |
aContents of 235U were calculated by using the value (0.046) of 235U/238U for natural U