| Concentration after harvesting (mg/kg) | |||||
| Tails | Soil | ||||
| Cu | Zn | Fe | Cu | Zn | Fe |
| 38.78 | 2.96 | 11.2 | 12.12 | 0.74 | 13.42 |
| 38.00 | 3.24 | 7.60 | 11.16 | 0.58 | 12.60 |
| 38.04 | 3.08 | 7.76 | 11.18 | 0.64 | 13.00 |
| 35.88 | 3.98 | 12.98 | 9.26 | 1.22 | 10.68 |
| 32.26 | 4.22 | 15.30 | 8.24 | 0.24 | 11.10 |
| 36.59 ± 2.65 | 3.49 ± 0.57 | 10.97 ± 3.34 | 10.39 ± 1.59 | 0.68 ± 0.35 | 12.16 ± 1.20 |