Paragraph 14 I1
England and Wales
Where the following formula is satisfied, it can be assumed that the indicative dose is less than the parametric value of 0,1 mSv and no further investigation is required—
Derived concentrations for radioactivity in water intended for human consumption f1
Origin | Nuclide | Derived concentration |
|---|---|---|
(1) This table allows only for the radiological properties of uranium, not for its chemical toxicity. | ||
| Natural | U-2383 | 3,0 Bq/l |
| U-2343 | 2,8 Bq/l | |
| Ra-226 | 0,5 Bq/l | |
| Ra-228 | 0,2 Bq/l | |
| Pb-210 | 0,2 Bq/l | |
| Po-210 | 0,1 Bq/l | |
| Artificial | C-14 | 240 Bq/l |
| Sr-90 | 4,9 Bq/l | |
| Pu-239/Pu-240 | 0,6 Bq/l | |
| Am-241 | 0,7 Bq/l | |
| Co-60 | 40 Bq/l | |
| Cs-134 | 7,2 Bq/l | |
| Cs-137 | 11 Bq/l | |
| 1-131 | 6,2 Bq/l | |
Annotations
Commencement
- I1
Sch. 4 para. 14 in force at 20.11.2017, see reg. 1
Footnotes
- f1
(1)
This table allows only for the radiological properties of uranium, not for its chemical toxicity.