Variable

Factor 1

Factor 2

Factor 3

Cd

0.877

−0.124

0.437

Cu

0.400

0.746

0.317

Pb

0.424

0.682

−0.466

Ni

−0.164

0.300

0.556

Zn

0.834

−0.507

0.071

Fe

0.634

−0.011

−0.443

Variance %

37.202

23.082

16.975

Cumulative %

37.202

60.284

77.259