Chemical Parameters | Basse Côte (N = 22) | Korhogo (N = 23) | P-value | |
Nitrites (mg/l) | Mean |
| 0.33 ± 0.11 |
|
Median |
| 0.32 | ||
Min.- Max. |
| 0.07 - 0.60 | ||
WHO standard (2017) | 3 |
| ||
Nitrates (mg/l) | Mean | 12.08 ± 2.11 | 11.03 ± 3.18 | 0.2177 |
Median | 9.21 | 6.51 | ||
Min.- Max. | 1.04 - 41.30 | 0.62 - 65.80 | ||
WHO standard (2017) | 50 |
| ||
COT (mg/l) | Mean | 1.28 ± 0.32 | 0.56 ± 0.09 | 0.0092** |
Median | 0.69 | 0.41 | ||
Min.- Max. | 0.34 - 5.48 | 0.30 - 1.51 | ||
WHO standard (2017) | 2 |
|