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| iron conc. | control | 1 g nZVI | 5 g nZVI | 10 g nZVI |
|---|---|---|---|---|
| FeII (mg/kg) | 63 ± 6.50 | 104 ± 14.80 | 147 ± 13.23 | 226.73 ± 8.39 |
| FeIII (mg/kg) | 238 ± 16.00 | 369 ± 18.00 | 716 ± 42.00 | 1549.1 ± 102.00 |
