Open Access
Table 5.
Level of cadmium contamination
| Indicators | Quarters | |||
|---|---|---|---|---|
| I | II | III | IV | |
| Number of samples with a maximum cadmium content | 41 | 40 | 19 | 44 |
| of the total number of samples, % | 8.20 | 8.00 | 3.80 | 8.80 |
| Number of samples with a medium cadmium content | 313 | 327 | 275 | 319 |
| of the total number of samples, % | 62.60 | 65.40 | 55.00 | 63.80 |
| Number of samples with a minimum cadmium content | 146 | 133 | 206 | 137 |
| of the total number of samples, % | 29.20 | 26.60 | 41.20 | 27.40 |
| Cadmium standard | 0.03 | 0.03 | 0.03 | 0.03 |
| Average cadmium content | 0.005 | 0.005 | 0.0002 | 0.005 |
| of the standard, % | 16.67 | 16.67 | 0.67 | 16.67 |
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