| Metals | Multiple Comparison | Overall ANOVA | ||||||
| Igun | Itagunmodi | Sabo | F-Value | F-Ratio | ||||
| Itagunmodi | Sabo | Control | Sabo | Control | Control | |||
| Pb | 0.04* | 0.273 | 0.001* | 0.001* | 0.001* | 0.06 | 23.78 | 0.001* |
| Cd | 0.001* | 0.001* | 0.001* | 0.001* | 0.001* | 0.01* | 30.76 | 0.001* |
| As | 0.001* | 0.001* | 0.001* | 0.001* | 0.001* | 0.66 | 98.25 | 0.001* |
| Cu | 0.001* | 0.406 | 0.001* | 0.001* | 0.001* | 0.03* | 14.63 | 0.001* |
| Zn | 0.001* | 0.062 | 0.998 | 0.082 | 0.002* | 0.21 | 25.16 | 0.001* |
| Fe | 0.896 | 0.940 | 0.001* | 0.578 | 0.001* | 0.001* | 0.985 | 0.336 |
| Cr | 0.001* | 0.001* | 0.001* | 0.001* | 0.001* | 0.01* | 26.25 | 0.001* |
| Mn | 0.002* | 0.001* | 0.001* | 0.001* | 0.001* | 0.003* | 73.76 | 0.001* |