Zn

Pb

Cd

As

Ni

Hg

Cu

Cr

Rainy Season

Aguigadji

0.36

7.59

5.03

0.29

3.16

1.41

0.74

0.8

Ahlan

0.37

6.73

5.01

0.86

3.40

2.7

0.75

0.78

Sele

0.27

5.97

3.5

0.04

0.83

2.52

0.85

2.12

Toho

0.0004

0.01

0

0

0.003

0

0.001

0

Dry Season

Aguigadji

0.26

7.28

3.86

0.06

2.96

0.25

0.51

0.76

Ahlan

0.25

6.61

3.53

0.07

3.16

0.47

0.7

0.75

Sele

0.25

5.39

3.28

0.03

0.63

0.17

0.87

0.79

Toho

0.0001

0.007

0.1

0.005

0.001

0

0.005

0