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Table 4 PCA for Zn and Fe concentration in fufu samples before and after milling

From: Heavy metal contamination and health risk assessment of mechanically milled delicacy called fufu

  PC 1 PC 2
Zn Before 0.977 −0.042
Zn After 0.963 0.040
Fe Before 0.206 0.889
Fe After −0.210 0.892
Total 1.968 1.589
% of Variance 49.188 39.736
Cumulative % 49.188 88.924
  1. aHigh loadings are shown in bold