Multivariate Statistical Analyses of Fluoride and Other Physicochemical Parameters in Groundwater Samples of Two Megacities in Asia: Lahore and Sialkot

Table 3

Varimax normalized factor loading for various parameters of drinking water samples from Lahore and Sialkot.

	Lahore			Sialkot
	Factor 1	Factor 2	Factor 3	Factor 1	Factor 2
pH	0.218	−0.071	0.744	−0.016	0.630
Cond.	0.946	0.106	0.062	0.701	0.015
Alkalinity	0.846	−0.153	−0.075	0.639	0.240
F^−	0.390	0.650	0.207	−0.779	0.177
Cl^−	−0.186	0.094	0.800	−0.122	0.772
NO3^−	0.017	−0.397	0.085	−0.592	0.282
SO4^−2	−0.102	0.876	0.082	0.547	0.158
TSS	0.946	0.106	0.062	0.443	0.625
Expl. variance	2.752	1.407	1.263	2.369	1.578
Prp. total	0.344	0.176	0.158	0.296	0.197
Eigenvalue	2.799	1.519	1.103	2.387	1.561
% Total variance	34.99	18.99	13.79	29.83	19.51
Cumulative eigenvalue	2.799	4.319	5.422	2.387	3.947
Cumulative %	34.99	53.99	67.78	29.83	49.34