| Zinc_pollution | ||||
| Duncan | ||||
| Identifiers | N | Subset for alpha = 0.05 | ||
| 1 | 2 | 3 | ||
| Ethiope River | 72 | 0.2342 |
|
|
| Warri River | 72 |
| 0.7642 |
|
| River Ase | 72 |
|
| 1.0308 |
| Sig. |
| 1.000 | 1.000 | 1.000 |