Physical Parameters

Basse Côte (N = 22)

Korhogo (N = 23)

P-value

Temperature (˚C)

Mean

27.51 ± 0.16

29.95 ± 0.51

<0.0001*

Median

27.40

29.80

Min.- Max.

26.30 - 29.50

20.60 - 34.80

pH

Mean

5.24 ± 0.12

6.33 ± 0.05

<0.0001*

Median

5.15

6.40

Min.- Max.

4.60 - 6.50

5.90 - 6.80

WHO standard (2017)

6.5 < pH < 8.5

Conductivity à 25˚C (µs/cm)

Mean

94.36 ± 16.06

171.8 ± 19.36

0.0038

Median

57.85

163.1

Min.- Max.

23.20 - 272.0

68.40 - 402.0

Turbidity (NTU)

Mean

3.24 ± 1.48

8.16 ± 3.23

0.1802

Median

0.78

2.82

Min.- Max.

0.41 - 31.20

0.89 - 72.10