Extractant

property

Extractant

2-hr

6-hr

Se

As

Cr

Se

As

Cr

pH

DI

0.96**

−0.64

0.54

−0.45

0.40

−0.29

RW

0.19

0.78

0.69

0.85

0.33

0.08

GW

−0.34

−0.27

0.37

−0.72

0.34

−0.86

ECa (µS∙cm−1)

DI

−0.72

0.45

−0.93*

0.59

0.09

0.31

RW

0.29

−1.00***

−0.23

0.95**

0.64

0.59

GW

−0.22

0.12

−0.29

0.80

−0.06

0.46