Variable | PC1 (30.5%) | PC2 (17.7%) | PC3 (14.3%) | PC4 (11.6%) |
K | 0.597 | 0.125 | −0.009 | 0.493 |
Cr | 0.719 | −0.095 | −0.072 | −0.603 |
Ni | 0.202 | −0.316 | 0.736 | 0.467 |
Cu | 0.443 | 0.465 | −0.397 | 0.325 |
Zn | 0.120 | 0.433 | 0.605 | −0.366 |
As | 0.720 | −0.371 | −0.193 | −0.157 |
Cd | 0.347 | 0.602 | 0.277 | −0.199 |
Pb | 0.824 | −0.007 | −0.299 | 0.094 |
S | 0.743 | −0.416 | 0.379 | 0.022 |
Cl | 0.231 | 0.754 | 0.088 | 0.143 |