Table 2 Equivalence test of group means.

From: Hydrochemical analysis and identification of open-pit mine water sources: a case study from the Dagushan iron mine in Northeast China

Original indicators

Wilks’ Lambda

Significance

Ca2+

0.67

0.00

Mg2+

0.56

0.00

HCO3ˉ

0.68

0.00

SO42ˉ

0.68

0.00

Clˉ

0.65

0.00

NO3ˉ

0.81

0.06

Na+  + K+

0.40

0.00

pH

0.90

0.32

  1. Significant values are in bold.
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