Variables	pH	Eh	T	EC	TDS	salinity	depth	Ca²⁺	Mg²⁺	NO− 2	NO− 3	NH+ 4	SO2− 4	PO3− 4	Cl⁻	O₂	Na⁺	K⁺
pH	1
Eh	−1	1
T	−0.704	0.705	1
EC	−0.458	0.455	0.166	1
TDS	−0.455	0.453	0.165	0.964	1
salinity	−0.452	0.449	0.164	0.963	1	1
depth	0.026	−0.028	−0.392	0.548	0.667	0.668	1
Ca²⁺	0.784	−0.782	−0.653	−0.549	−0.458	−0.455	0.055	1
Mg²⁺	0.785	−0.783	−0.654	−0.549	−0.458	−0.455	0.056	1	1
NO− 2	−0.216	0.218	−0.129	0.254	0.444	0.443	0.798	0.11	0.11	1
NO− 3	−0.558	0.555	0.445	0.610	0.639	0.630	0.217	−0.476	−0.476	0.258	1
NH+ 4	0.082	−0.084	−0.368	0.451	0.58	0.579	0.906	0.250	0.251	0.767	0.314	1
SO2− 4	0.014	−0.213	−0.257	−0.142	−0.227	−0.145	−0.080	0.172	0.170	−0.051	−0.266	−0.115	1
PO3− 4	0.287	−0.290	−0.459	0.290	0.392	0.396	0.660	0.271	0.272	0.371	0.068	0.710	−0.136	1
Cl⁻	−0.431	0.436	0.23	0.394	0.483	0.492	0.220	−0.325	−0.325	0.344	0.478	0.007	−0.024	−0.096	1
O₂	0.047	−0.047	0.076	−0.432	−0.605	−0.609	−0.873	−0.027	−0.027	−0.786	−0.182	−0.789	0.149	−0.480	−0.293	1
Na⁺	0.516	−0.51	−0.295	−0.745	−0.707	−0.706	−0.441	0.731	0.730	−0.146	−0.377	−0.262	0.138	−0.077	−0.220	0.491	1
K⁺	0.474	−0.473	−0.62	−0.658	−0.403	−0.405	−0.182	0.207	0.208	−0.374	−0.554	−0.375	0.187	−0.211	−0.183	0.442	0.254	1