Table 3.

Relationships between non-organic ions in precipitation versus pH

Variable	pH	Na+	K+	Mg2+	Ca2+	SO42−	NO3−	Cl−	NH4+
pH	1.00
Na+	0.09	1.00
K+	0.67	0.46	1.00
Mg2+	0.30	0.84	0.59	1.00
Ca2+	−0.38	−0.28	−0.28	−0.33	1.00
SO42−	−0.33	−0.25	−0.18	−0.28	0.99	1.00
NO3−	−0.38	0.66	−0.06	0.62	−0.19	−0.19	1.00
Cl−	−0.13	0.81	0.33	0.74	−0.24	−0.20	0.85	1.00
NH4+	0.62	0.39	0.84	0.50	−0.33	−0.24	0.05	0.38	1.00