Element

Zn

Pb

Co

Cu

Cr

Mn

Cd

V

Fe

Ni

As

Sb

Al

EC

pH

TDS

Temp

Zn

1

Pb

0.01

1

Co

−0.06

−0.14

1

Cu

−0.06

0.47

0.17

1

Cr

0.32

−0.47

0.17

0.14

1

Mn

−0.01

0.19

0.62

0.44

0.41

1

Cd

0.52

0.56

−0.02

0.13

−0.30

0.05

1

V

0.30

−0.64

−0.15

−0.02

0.78

0.06

−0.32

1

Fe

−0.36

−0.11

−0.07

0.84

−0.24

−0.07

0.00

0.09

1

Ni

0.28

0.31

0.15

0.13

0.16

0.36

0.60

−0.26

0.00

1

As

0.40

−0.57

−0.19

0.08

0.65

−0.05

0.02

0.82

0.47

0.04

1

Sb

0.15

0.46

−0.11

0.40

−0.42

0.24

0.53

−0.26

0.82

0.20

−0.10

1

Al

0.64

0.49

0.04

0.32

−0.25

−0.01

0.93

−0.28

0.21

0.47

0.08

0.52

1

EC

0.08

−0.80

−0.18

−0.28

0.47

−0.17

−0.46

0.87

0.17

−0.51

0.75

−0.27

−0.40

1

pH

0.36

−0.86

0.34

−0.31

0.64

0.16

−0.21

0.72

0.00

−0.08

0.68

−0.26

−0.17

0.74

1

TDS

0.08

−0.80

−0.18

−0.28

0.47

−0.17

−0.46

0.87

0.17

−0.51

0.75

−0.27

−0.40

1.00

0.74

1

Temp

0.06

−0.91

0.20

−0.16

0.58

−0.12

−0.55

0.72

0.29

−0.33

0.58

−0.39

−0.38

0.73

0.81

0.73

1

r values > 0.5 or <−0.5 are significant

r > 0.72 Strong correlation

r > 0.80 Very strong correlation