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

Table 2

Correlation coefficient matrix for the drinking water samples from Lahore and Sialkot.

	pH	Cond. (𝜇S/cm)	Alkal. (mg/L)	F^− (mg/L)	Cl^− (mg/L)	NO3^− (mg/L)	SO4^−2 (mg/L)	TTS (mg/L)
Lahore
pH	1.000
Cond. (𝜇S/cm)	0.172	1.000
Alkal. (mg/L)	0.163	0.661	1.000
F^− (mg/L)	0.138	0.352	0.243	1.000
Cl^− (mg/L)	0.218	−0.048	−0.218	0.116	1.000
NO3^− (mg/L)	−0.054	−0.032	0.027	−0.005	−0.004	1.000
SO4^−2 (mg/L)	0.039	0.014	−0.192	0.395	0.107	−0.147	1.000
TTS (mg/L)	0.172	0.999	0.661	0.352	−0.048	−0.032	0.014	1.000
Sialkot
pH	1.000
Cond. (𝜇S/cm)	0.003	1.000
Alkal. (mg/L)	−0.196	0.422	1.000
F^− (mg/L)	−0.018	−0.346	−0.291	1.000
Cl^− (mg/L)	0.238	−0.123	0.152	0.181	1.000
NO3^− (mg/L)	0.043	−0.215	−0.098	0.520	0.159	1.000
SO4^−2 (mg/L)	0.144	0.311	0.302	−0.355	0.071	−0.118	1.000
TTS (mg/L)	0.310	0.250	0.392	−0.214	0.255	−0.165	0.046	1.000

Lahore 𝑟 values are significant at 0.229 at 𝑃>0.05.
Sialkot 𝑟 values are significant at 0.265 at 𝑃>0.05.