Estimation of Groundwater Quality in Arid Region or Semiarid Region by Using Statistical Methods and Geographical Information System Technique

Table 3

The coefficients of correlation () between several water quality metric postmonsoon.

pH	1
EC	0.019	1
TDS	0.025	0.982	1
Cl^-	0.009	0.660	0.568	1
TH	0.188	0.261	0.212	0.430	1
Ca^2+	0.242	0.152	0.118	0.290	0.430	1
Mg^2+	0.216	0.159	0.132	0.282	0.862	0.241	1
HCO3^-	0.058	0.552	0.548	0.284	0.036	0	0.008	1
SO4^2-	0	0.288	0.368	0.042	0.032	0.006	0.024	0.124	1
F^-	0.318	0.249	0.302	0.018	0	0.048	0.007	0.332	0.140	1
NO3^-	0.001	0.031	0.041	0.024	0	0	0.016	0.002	0.146	0.006	1
PO4	0.002	0.130	0.118	0.36	0.251	0.192	0.0182	0.026	0.002	0.004	0.006	1
Na	0.058	0.334	0.314	0.091	0.128	0.023	0.072	0.105	0.232	0.243	0.026	0.003	1
K	0.002	0	0.002	0	0.031	0	0.023	0.003	0.039	0.015	0.004	0.003	0.014	1