Aqueous chemistry of anthropogenically contaminated Bengaluru lakes

Table 3 Multiple correlation analysis for grab samples

–	TDS	pH	CO₃²⁻	HCO₃⁻	Cl⁻	SO4²⁻	NO₃⁻	Ca²⁺	Mg²⁺	Na⁺	K⁺	DO	Chl-a
TDS	1
pH	−0.06	1
CO₃²⁻	− 0.14	0.69	1
HCO₃⁻	0.49	−0.72	−0.57	1
Cl⁻	0.25	0.25	0.68	0.12	1
SO₄²⁻	0.32	−0.59	−0.59	0.71	−0.05	1
NO₃⁻	0.45	−0.58	−0.79	0.64	−0.43	0.77	1
Ca²⁺	0.36	−0.64	−0.29	0.87	0.30	0.67	0.50	1
Mg²⁺	0.61	−0.62	−0.36	0.86	0.16	0.69	0.61	0.84	1
Na⁺	0.19	0.39	0.63	0.06	0.90	−0.04	−0.37	0.27	0.06	1
K⁺	−0.06	0.19	0.43	0.04	0.73	0.14	−0.36	0.29	−0.03	0.81	1
DO	−0.12	0.74	0.73	−0.71	0.42	−0.66	−0.72	− 0.57	−0.68	0.47	0.33	1
Chl-a	0.10	0.74	0.44	−0.51	0.27	−0.20	− 0.27	−0.42	− 0.47	0.36	0.30	0.59	1

ISSN: 2468-2039