Environmental Systems Research

Table 6 Varimax rotated factor loadings and communities of three experimental variables in R-mode

From: Concentrations, hydrochemistry and risk evaluation of selected heavy metals along the Jimi River and its tributaries at Obuasi a mining enclave in Ghana

	Component			Communalities
	PC1	PC2	PC3	Initial	Extraction
HCO₃ ⁻	0.759	−0.649	0.051	1.000	0.998
Alk	0.774	−0.632	0.037	1.000	0.991
pH	0.386	−0.907	0.139	1.000	0.994
Ca²⁺	0.754	−0.640	0.129	1.000	0.941
SO₄ ²⁻	0.544	0.026	−0.803	1.000	0.983
Cond	0.766	0.623	−0.091	1.000	0.992
Mg²⁺	0.690	−0.711	0.099	1.000	0.990
NO₃-	0.893	0.437	0.030	1.000	0.992
NO₂-	0.835	0.543	0.013	1.000	0.820
Cd	−0.400	0.461	0.668	1.000	0.966
Fe	0.806	0.560	−0.055	1.000	0.997
Ni	0.430	−0.890	0.141	1.000	0.915
Zn	0.814	0.500	0.043	1.000	0.992
Pb	0.842	0.532	0.017	1.000	0.782
CN⁻	−0.568	−0.384	−0.558	1.000	0.959
As	0.356	−0.912	0.033	1.000	0.874
S₂ ⁻	0.582	−0.810	0.048	1.000	0.998
Eigenvalues	8.270	6.423	1.491
% of variance	48.649	37.780	8.773
Cumulative %	48.649	86.428	95.201

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