Environmental pollution loads on surface water chemistry and potentially ecological risks of inland aquatic ecosystem in South-Eastern State, Nigeria

Environmental Systems Research

Table 5 Correlation Matrix of physicochemical characteristics of Nworie Inland Surface Water

Variable	pH	Turb	CaCO₃	COD	DO	Cl	Ca	Mg	K	Na	SO₂⁴	NO₃	PO₃⁴
pH	1
Turb	− 0.51^a	1
CaCO₃	− 0.48	1.00	1
COD	− 0.10	0.91^b	0.92^b	1
DO	− 0.09	0.90^b	0.92^b	1.00	1
Cl	− 0.63^a	− 0.34	− 0.37	− 0.71^b	− 0.71^b	1
Ca	0.04	0.84^b	0.86^b	0.99^b	0.99^b	− 0.80^b	1
Mg	0.73^b	0.22	0.25	0.61^a	0.61^a	− 0.99^b	0.71^b	1
K	− 0.54^a	1.00^b	1.00	0.89^b	0.88^b	− 0.30	0.82^b	0.18	1
Na	− 0.70^b	0.97^b	0.96^b	0.78^b	0.77^b	− 0.11	0.69^a	− 0.02	0.98^b	1
SO₂⁴	0.95^b	− 0.20	− 0.17	0.23	0.24	− 0.85^b	0.36	0.91^b	− 0.24	− 0.43	1
NO₃	1.00^b	− 0.57^a	− 0.54^a	− 0.17	− 0.16	− 0.58^a	− 0.03	0.68^a	− 0.60^a	− 0.75^b	0.92^b	1
PO₃⁴	− 0.55^a	− 0.44	− 0.47	− 0.78^b	− 0.78^b	0.99^b	− 0.86^b	− 0.97^b	− 0.40	− 0.21	− 0.79^b	− 0.49	1