Minimum

Maximum

Mean

Std. Dev.

Kurtosis

Skewness

Control sample

Fe (mg/L)

0.695

4.906

2.72

1.252

0.202

0.156

0.212

Cu (mg/L)

0.117

2.205

0.623

0.745

0.794

1.419

0.018

Cd (mg/L)

0.009

0.282

0.055

0.083

7.749

2.716

BDL

Pb (mg/L)

0.035

2.345

0.736

0.805

0.267

1.082

0.008

Zn (mg/L)

0.405

2.256

1.287

0.656

−1.41

0.298

0.081

Ni (mg/L)

0.085

1.623

0.584

0.404

5.727

2.078

0.011

Cr (mg/L)

0.274

0.738

0.525

0.177

−1.694

−0.267

BDL