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Table 2 Correlation matrix for different water quality parameters in the study area

From: Potential health risk assessment through the consumption of arsenic-contaminated groundwater in parts of the middle Gangetic plain

Parameters

pH

EC

TH

Ca+2

Mg+2

Na+

K+

HCO3

Cl

So4−2

NO3−1

Fe

As

pH

1

            

EC

− 0.16

1

           

TH

− 0.29

0.65

1

          

Ca+2

0.15

0.42

0.30

1

         

Mg+2

− 0.46

0.56

0.83

− 0.13

1

        

Na+

− 0.03

0.88

0.34

0.35

0.24

1

       

K+

0.12

0.61

0.19

0.32

0.07

0.61

1

      

HCO3

− 0.41

0.76

0.68

0.36

0.59

0.60

0.37

1

     

Cl

0.02

0.87

0.49

0.32

0.42

0.82

0.56

0.42

1

    

So4−2

0.05

0.60

0.40

0.33

0.28

0.53

0.6

0.37

0.41

1

   

NO3

− 0.11

0.66

0.26

0.18

0.33

0.60

0.45

0.42

0.64

0.27

1

  

Fe

0.00

− 0.14

0.14

− 0.16

0.19

− 0.22

− 0.16

0.06

− 0.18

− 0.31

− 0.12

1

 

As

0.00

− 0.14

0.14

− 0.16

0.19

− 0.22

− 0.16

0.06

− 0.18

− 0.31

− 0.12

0.92

1

  1. *Bold good correlation (r ≥ 0.6) Italic poor correlation (r ≤ 0)