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Table 6 The result of PCA/FA for entire data set

From: Heavy metal pollutants and their spatial distribution in surface sediments from Thondi coast, Palk Bay, South India

  PC1 PC2 PC3
Component matrixa
Eigen value 2.463 2.023 1.270
% of Variance 2.034 22.596 49.965
Cumulative % 1.321 14.682 64.646
Loading of variances
Fe −0.178 0.771b 0.017
Mn 0.329 0.680b 0.208
Cr −0.371 0.211 0.811b
Cu 0.270 0.126 0.676b
Ni 0.123 −0.590 0.721 b
Cd 0.568b 0.293 −0.085
Pb 0.206 0.612 b −0.066
Zn 0.603b 0.203 0.174
  1. aExtraction method: principal component analysis
  2. bLoading values of being equal to or greater than 0.5