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Table 3 Principal component loadings of soil data including variance % and cumulative %

From: Multivariate statistics and contamination factor to identify trace elements pollution in soil around Gerga City, Egypt

Variable

Component

PC1

PC2

Co

0.974

− 0.028

Ni

0.949

− 0.018

Pb

0.951

0.111

Mn

− 0.339

0.811

P

0.619

0.103

CaCO3

0.383

0.732

pH

0.117

0.829

Variance %

48.746

27.169

Cumulative %

48.746

75.942

  1. Extraction method: principal component analysis. Rotation method: varimax with Kaiser-Meyer-Olkin normalization (KMO = 0.712 (middling)). Rotation converged in three iterations