	T(°C)	pH	log₁₀EC	DO	log₁₀BOD₅	log₁₀COD	log₁₀NH₃	${NO}_{3}^{-}$	log_{10 ${NO}_{2}^{-}$}	log_{10 ${SO}_{4}^{2 -}$}	${PO}_{4}^{3 -}$	log₁₀MBAS	log₁₀TC	log₁₀FC
T(°C)	1.000	0.270	0.891	−0.659	0.783	0.783	0.959	0.900	0.922	0.833	0.918	0.927	0.866	0.866
pH	−0.856	1.000	0.058	0.088	0.035	−0.018	0.150	0.237	0.103	0.015	0.122	0.133	0.371	0.371
log₁₀EC	0.906	−0.891	1.000	−0.910	0.962	0.959	0.954	0.869	0.970	0.986	0.996	0.963	0.884	0.884
DO	−0.800	0.844	−0.978	1.000	−0.977	−0.973	−0.785	−0.641	−0.877	−0.944	−0.876	−0.851	−0.671	−0.671
log₁₀BOD₅	0.910	−0.872	0.996	−0.968	1.000	0.997	0.867	0.744	0.929	0.986	0.943	0.917	0.776	0.776
log₁₀COD	0.909	−0.884	0.999	−0.975	0.998	1.000	0.863	0.737	0.924	0.986	0.938	0.913	0.754	0.754
log₁₀NH₃	0.816	−0.848	0.981	−0.998	0.970	0.978	1.000	0.850	0.977	0.913	0.958	0.988	0.876	0.876
${NO}_{3}^{-}$	0.760	−0.801	0.958	−0.985	0.947	0.954	0.983	1.000	0.819	0.799	0.908	0.796	0.930	0.930
log_{10 ${NO}_{2}^{-}$}	0.952	−0.954	0.939	−0.867	0.924	0.934	0.883	0.837	1.000	0.942	0.965	0.991	0.823	0.823
log_{10 ${SO}_{4}^{2 -}$}	0.765	−0.780	0.940	−0.959	0.931	0.938	0.951	0.969	0.802	1.000	0.972	0.941	0.837	0.837
${PO}_{4}^{3 -}$	0.928	−0.928	0.949	−0.897	0.925	0.942	0.915	0.879	0.986	0.850	1.000	0.957	0.915	0.915
log₁₀MBAS	0.869	−0.909	0.990	−0.985	0.979	0.987	0.988	0.952	0.930	0.927	0.944	1.000	0.836	0.836
log₁₀TC	0.848	−0.779	0.863	−0.789	0.894	0.873	0.788	0.797	0.837	0.760	0.784	0.806	1.000	1.000
log₁₀FC	0.790	−0.775	0.873	−0.831	0.899	0.881	0.828	0.847	0.819	0.784	0.779	0.829	0.984	1.000