Table 2 Comparision of physico chemical characteristics of breeding sites from urban and rural areas in Douala and Yaoundé.

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