Major ions in rainwater

Max

Min

SD

Na⁺

198

22

49.44

K⁺

95

18

25.44

Mg²⁺

98

15

26.04

Ca²⁺

87

7

26.36

Cl⁻

122

18

25.70

${\text{NO}}_{\text{3}}^{-}$

59

10

14.54

${\text{SO}}_{\text{4}}^{\text{2}-}$

76

23.2

12.94