Salinization and arsenic contamination of surface water in southwest Bangladesh

Table 4 Pearson correlation coefficient matrix for all surface water and groundwater samples

	Eh	H⁺	As	B	Ca	Fe	K	Mg	Na	S	Sr	Cl	HCO₃ ⁻	DOC
Eh	1
H⁺	−0.41	1
As	−0.39	0.34	1
B	0.09	−0.06	−0.04	1
Ca	−0.13	0.34	0.15	0.53	1
Fe	−0.38	0.27	0.18	−0.13	0.35	1
K	0.38	−0.12	−0.13	0.91	0.55	−0.17	1
Mg	0.22	−0.02	−0.08	0.94	0.70	−0.04	0.96	1
Na	0.31	−0.05	−0.09	0.91	0.64	−0.11	0.97	0.96	1
S	0.39	−0.23	−0.19	0.89	0.52	−0.22	0.96	0.92	0.92	1
Sr	0.07	0.05	0.01	0.91	0.77	−0.02	0.88	0.96	0.92	0.85	1
Cl	0.28	−0.05	−0.09	0.93	0.64	−0.11	0.97	0.98	1.00	0.92	0.94	1
HCO₃ ⁻	−0.69	0.38	0.59	0.03	0.22	0.35	−0.18	−0.09	−0.09	−0.29	0.02	−0.10	1
DOC	−0.28	0.15	0.52	0.01	0.26	0.29	−0.05	−0.01	0.05	−0.11	0.03	0.02	0.87	1

ISSN: 1467-4866