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Table 4 Matrix of three principal components

From: Spatial distribution and source identification of heavy metal pollution in roadside surface soil: a study of Dhaka Aricha highway, Bangladesh

  Component
Elements PC1 PC2 PC3
Fe 0.927 −0.221 −0.059
Al 0.789 0.541 −0.053
Ca −0.355 0.846 −0.044
K 0.277 0.148 0.853
Ti 0.840 0.015 −0.287
Mn 0.507 0.004 0.663
Zr 0.854 0.175 −0.085
Sr −0.189 0.927 0.237
Rb 0.911 0.211 0.174
Zn −0.161 0.031 0.745
Sn 0.280 −0.185 0.701
P 0.174 0.789 −0.162
Ba 0.600 −0.122 0.172
Eigenvalue (total) 5.149 2.473 2.253
% of total variance 39.610 19.020 17.331
Cumulative % of variance 39.610 58.630 75.961
  1. Moderate to strong loadings are in boldface