Open Access
Table 10.
Level of strontium-90 contamination
| Indicators | Quarters | |||
|---|---|---|---|---|
| I | II | III | IV | |
| Number of samples with a maximum strontium-90 content | 0 | 0 | 0 | 0 |
| of the total number of samples, % | 0 | 0 | 0 | 0 |
| Number of samples with a medium strontium-90 content | 141 | 119 | 36 | 137 |
| of the total number of samples, % | 28.20 | 23.80 | 7.20 | 27.40 |
| Number of samples with a minimum strontium-90 content | 359 | 381 | 464 | 363 |
| of the total number of samples, % | 71.80 | 76.20 | 92.80 | 72.60 |
| Strontium-90 standard | 25.00 | 25.00 | 25.00 | 25.00 |
| Average strontium-90 content | 0.50 | 1.10 | 0.80 | 0.50 |
| of the standard, % | 2.00 | 4.40 | 3.20 | 2.00 |
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