Fe

As

Cr

Cd

Cu

Ni

Pb

Sb

Zn

pH

EC

OM

Fe

1

As

0.60

1

Cr

0.97

0.50

1

Cd

0.99

0.57

0.96

1

Cu

0.89

0.79

0.79

0.87

1

Ni

0.71

0.58

0.73

0.69

0.69

1

Pb

0.81

0.85

0.70

0.78

0.87

0.63

1

Sb

0.98

0.55

0.99

0.96

0.82

0.71

0.74

1

Zn

0.95

0.74

0.94

0.94

0.87

0.79

0.85

0.94

1

pH

−0.26

−0.29

−0.33

−0.17

−0.18

−0.50

−0.36

−0.36

−0.37

1

EC

−0.01

0.54

−0.04

−0.03

0.12

0.39

0.39

−0.03

0.21

−0.48

1

OM

−0.11

−0.2

−0.22

−0.06

−0.10

−0.41

−0.08

−0.18

−0.25

0.52

−0.22

1