Stations

Concentrations x ± S.D (µg∙g−1)

Fe

Cu

Pb

Zn

Cd

Ni

Tafsout

999.16 ± 314.76

0.85 ± 0.25

3.06 ± 4.41

0.72 ± 2.04

0.36 ± 0.54

2.13 ± 0.49

Agla

1406.25 ± 423.29

1.11 ± 0.2

2.78 ± 5.89

0.53 ± 1.05

0.16 ± 0.05

2.01 ± 0.5

Guidelines*

40,800

30.8

26.0101

0.153

39.4