Table 3 Linear regression models used to predict water acidity from hydrochemical parameters in extremely acidic environments.

From: A data-driven high-accuracy modelling of acidity behavior in heavily contaminated mining environments

Model

Equation

R2

M1

Acidity = 466.760 + 86.057 x [Cu]

94.5%

M2

Acidity = 33.627 + 57.721 x [Cu] + 4.447 x [Al]

96.4%

M3

Acidity = -2454.827 + 60.425 x [Cu] + 5.268 x [Al] + 848.190 x [pH]

96.8%

M4

Acidity = -3233.291 + 58.342 x [Cu] + 3.820 x [Al] + 1092.488 x [pH] + 15.453 x [Mn]

97.2%

M5

Acidity = -1260.085 + 12.282 x [Cu] -3.652 x [Al] + 496.005 x [pH] + 68.542 x [Mn] + 7.068 x [Zn]

99.2%

Back to article page