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| time (day) | control | DDT | 1 g nZVI | 1 g nZVI + DDT | 5 g nZVI | 5 g nZVI + DDT | 10 g nZVI | 10 g nZVI + DDT |
|---|---|---|---|---|---|---|---|---|
| 7 | 64 ± 10.87 | 0 ± 0 | 0 ± 0 | 0 ± 0 | 0 ± 0 | 0 ± 0 | 0 ± 0 | 0 ± 0 |
| 15 | 72 ± 9.89 | 0 ± 0 | 0 ± 0 | 0 ± 0 | 0 ± 0 | 0 ± 0 | 0 ± 0 | 0 ± 0 |
| 21 | 102 ± 10.83 | 0 ± 0 | 0 ± 0 | 0 ± 0 | 0 ± 0 | 0 ± 0 | 0 ± 0 | 0 ± 0 |
| 28 | 142 ± 14.86 | 4 ± 0.9 | 0 ± 0 | 0 ± 0 | 0 ± 0 | 0 ± 0 | 0 ± 0 | 0 ± 0 |
