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Table 4 Factor loading for selected trace metals in groundwater samples for wet and dry seasons

From: Evaluation of groundwater and surface water quality and human risk assessment for trace metals in human settlements around the Bosomtwe Crater Lake in Ghana

Variable	Dry season			Wet season
Variable	PC 1	PC 2	PC 3	PC 1	PC 2
Fe	0.492	−0.366	0.142	0.577	−0.005
Pb	−0.144	−0.069	0.913	0.625	−0.083
Zn	0.635	0.285	−0.167	−0.125	0.643
Cr	0.366	0.672	0.329	0.000	0.713
Ni	−0.447	0.574	−0.104	−0.511	−0.265
Eigenvalues	1.935	1.312	1.120	2.300	1.390
% of variance	38.701	26.232	22.395	45.998	27.801
Cumulative %	38.701	64.933	87.328	45.998	73.799

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