Variable

NE

Min

Max

Average

Standard deviation

WHO and Bénin

standard

EC*

30

295.0

3210

1310.33

918.60

<2000

Turbidity

30

4.90

198.1

74.14

57.20

<5

SM

30

9.00

264

98.83

73.0

35^a

DO

30

0.24

4.20

1.43

1.30

>5

BDO₅

30

1.97

470.00

98.14

132.31

<25*

COD

30

5.33

874.20

181.14

251.12

<125*

Am

30

0.10

494.52

66.63

123.22

<0.2

TP

30

5.00

300.0

42.32

62.16

<10