Douala | Yaoundé | |||||
---|---|---|---|---|---|---|
Rural breeding sites | Urban breeding sites | P value | Rural breeding sites | Urban breeding sites | P value | |
N | 6 | 109 | 7 | 158 | ||
Alcalinity | 105.8 ± 44.7 | 113.5 ± 2.04 | 0.63 | 105.7 ± 30.7 | 173.2 ± 1.9 | 0.22 |
Aluminium | 0.13 ± 0.07 | 0.68 ± 0.08 | 0.81 | 0.05 ± 0.03 | 0.028 ± 0.001 | 0.97 |
Ammonia | 0.14 ± 0.05 | 1.1 ± 0.03 | 0.005 | 0.71 ± 0.41 | 2 ± 0.03 | 0.20 |
Nitrates | 1.53 ± 0.5 | 5.38 ± 0.15 | 0.105 | 1.43 ± 0.4 | 3.37 ± 0.05 | 0.19 |
Nitrites | 0.01 ± 0.006 | 0.28 ± 0.02 | 0.19 | 0.065 ± 0.02 | 0.28 ± 0.007 | 0.25 |
Manganese | 0.012 ± 0.004 | 31.5 ± 1.5 | 0.105 | 0.008 ± 0.002 | 0.01 ± 0.0002 | 0.93 |
Potassium | 4.55 ± 0.8 | 12.3 ± 0.8 | 0.016 | 12.17 ± 5.01 | 12.7 ± 0.58 | 0.90 |
Iron | 5.53 ± 0.61 | 13.8 ± 0.9 | 0.24 | 2 ± 1.25 | 4.2 ± 0.13 | 0.08 |
Phosphate | 0.5 ± 0.18 | 0.76 ± 0.04 | 0.39 | 0.65 ± 0.18 | 0.93 ± 0.01 | 0.71 |
Sulfate | 10.5 ± 4.9 | 29.15 ± 2.7 | 0.61 | 13.9 ± 4 | 34 ± 0.5 | 0.34 |
Mg hardness | 1.67 ± 1.3 | 17.3 ± 0.3 | 0.23 | 6.07 ± 4.5 | 19.8 ± 0.5 | 0.12 |
Total hardness | 52.5 ± 18.9 | 57.3 ± 1.1 | 0.90 | 27.1 ± 8.8 | 111.1 ± 1.19 | 0.003 |
Conductivity | 205.57 ± 37.9 | 393.4 ± 3.6 | 0.11 | 122.7 ± 37.6 | 830.8 ± 11.2 | 0.000 |
Turbidity | 177.5 ± 20 | 105.2 ± 2.6 | 0.006 | 89.2 ± 38.2 | 103.7 ± 1.9 | 0.61 |
pH | 6.84 ± 0.26 | 6.63 ± 0.01 | 0.76 | 5.9 ± 0.6 | 6.8 ± 0.016 | 0.55 |
Dissoved Oxygen | 115.3 ± 7.8 | 170.8 ± 25.5 | 0.61 | 50.7 ± 21.5 | 94.2 ± 1.6 | 0.09 |