Fe

As

Cr

Cd

Cu

Ni

Pb

Sb

Zn

pH

EC

OM

Fe

1

As

0.93

1

Cr

0.93

0.96

1

Cd

0.56

0.75

0.56

1

Cu

−0.54

−0.57

−0.70

−0.26

1

Ni

−0.69

−0.62

−0.78

−0.13

0.93

1

Pb

0.74

0.71

0.64

0.46

0.08

−0.11

1

Sb

0.96

0.86

0.90

0.44

−0.68

−0.83

0.54

1

Zn

−0.62

−0.54

−0.74

0.04

0.87

0.97

−0.12

−0.75

1

pH

−0.61

−0.56

−0.36

−0.68

−0.20

−0.08

−0.72

−0.47

−0.21

1

EC

−0.58

−0.79

−0.73

−0.70

0.31

0.26

−0.66

−0.40

0.24

0.31

1

OM

−0.87

−0.84

−0.93

−0.39

0.87

0.94

−0.38

−0.93

0.89

0.18

0.50

1