Investigation of the Soan River Water Quality Using Multivariate Statistical Approach

Table 3

Pearson’s correlation matrix (premonsoon).

	EC	pH	Turbidity	Alkalinity	HCO3	Ca	Cl^-	Hard.	Mg	K	Na	SO4	NO3	TDS	DO	BOD	COD	TSS
EC	1
pH	-0.196	1
Turbidity	0.200	-0.69	1
Alkalinity	0.984	-0.241	0.227	1
HCO3	0.998	-0.17	0.187	0.985	1
Ca	0.752	0.163	-0.02	0.637	0.761	1
Cl^-	0.855	0.115	-0.32	0.826	0.853	0.706	1
Hard.	0.972	0.038	0.032	0.942	0.977	0.821	0.901	1
Mg	0.968	0.009	0.019	0.932	0.974	0.846	0.900	0.992	1
K	0.982	-0.114	0.137	0.950	0.970	0.760	0.877	0.969	0.959	1
Na	0.769	-0.747	0.564	0.794	0.764	0.415	0.464	0.611	0.636	0.673	1
SO4	0.985	-0.073	0.100	0.945	0.985	0.844	0.883	0.989	0.993	0.979	0.686	1
NO3	0.081	-0.721	0.921	0.085	0.058	-0.07	-0.395	-0.097	-0.073	0.049	0.484	0.005	1
TDS	0.997	-0.143	0.166	0.976	0.992	0.764	0.871	0.980	0.970	0.990	0.723	0.987	0.04	1
DO	-0.544	0.816	-0.808	-0.612	-0.542	-0.11	-0.11	-0.36	-0.363	-0.43	-0.903	-0.421	-0.69	-0.493	1
BOD	0.597	-0.792	0.821	0.636	0.595	0.257	0.151	0.421	0.435	0.489	0.926	0.496	0.719	0.547	-0.984	1
COD	0.276	-0.835	0.927	0.322	0.275	0.001	-0.21	0.084	0.097	0.161	0.750	0.166	0.848	0.222	-0.929	0.933	1
TSS	0.328	-0.662	0.989	0.357	0.315	0.06	-0.20	0.168	0.148	0.271	0.623	0.227	0.886	0.299	-0.841	0.854	0.912	1

Correlation is significant at the 0.05 level (2-tailed). Correlation is significant at the 0.01 level (2-tailed).