Open Access
Table 1
Content of heavy metal labile fractions, mg/kg.
| Heavy metal | MACL | No | |||||||
|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | ||
| Lead | 6 | 1.61 | 1.91 | 1.63 | 2.51 | 1.98 | 1.91 | 1.72 | 1.85 |
| Cadmium | – | 0.344 | 0.259 | 0.251 | 0.296 | 0.253 | 0.257 | 0.219 | 0.204 |
| Copper | 3 | 1.37 | 2.06 | 1.97 | 1.55 | 1.59 | 1.49 | 1.37 | 1.46 |
| Zinc | 23 | 3.24 | 2.75 | 3.03 | 2.53 | 2.85 | 2.37 | 2.27 | 2.26 |
| Manganese | 140–500 | 237.0 | 222.5 | 222.5 | 214.5 | 236.5 | 220.5 | 238.5 | 253.5 |
| Nickel | 4 | 4.62 | 5.39 | 4.26 | 4.85 | 4.86 | 3.82 | 4.12 | 4.45 |
| Cobalt | 5 | 3.49 | 4.34 | 3.62 | 3.88 | 3.92 | 3.10 | 3.47 | 3.89 |
| Iron | – | 254 | 255.5 | 235.5 | 266 | 262 | 237 | 264.5 | 274.5 |
| Chromium | 6 | 6.89 | 4.63 | 2.82 | 3.87 | 3.18 | 4.23 | 4.43 | 3.98 |
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