Part 6 Tables
Scotland
Table 1
Concentration of radionuclides: NORM industrial activities
| Radionuclide | Solid or relevant liquid concentration in becquerels per gram (Bq/g) | Any other liquid concentration becquerels per litre (Bq/l) | Gaseous concentration in becquerels per cubic metre (Bq/m3) |
|---|---|---|---|
| U-238sec | 1 | 0.1 | 0.001 |
| U-238+ | 5 | 10 | 0.01 |
| U-234 | 5 | 10 | 0.01 |
| Th-230 | 10 | 10 | 0.001 |
| Ra-226+ | 1 | 1 | 0.01 |
| Pb-210+ | 5 | 0.1 | 0.01 |
| Po-210 | 5 | 0.1 | 0.01 |
| U-235sec | 1 | 0.1 | 0.0001 |
| U-235+ | 5 | 10 | 0.01 |
| Pa-231 | 5 | 1 | 0.001 |
| Ac-227+ | 1 | 0.1 | 0.001 |
| Th-232sec | 1 | 0.1 | 0.001 |
| Th-232 | 5 | 10 | 0.001 |
| Ra-228+ | 1 | 0.1 | 0.01 |
| Th-228+ | 1 | 1 | 0.001 |