项目

最小值

最大值

均值

标准偏差

变异系数%

Na⁺ (mg/L)

36.28

104.50

53.53

17.30

0.32

K⁺ (mg/L)

0.44

0.75

0.58

0.09

0.15

Mg²⁺ (mg/L)

26.55

72.40

49.30

15.35

0.31

Ca²⁺ (mg/L)

37.89

90.65

60.89

16.74

0.27

Cl⁻ (mg/L)

20.08

180.62

89.44

50.21

0.56

${\text{SO}}_4^{2-}$ (mg/L)

14.42

121.47

50.66

32.62

0.64

${\text{HCO}}_3^{-}$ (mg/L)

298.98

450.31

353.54

49.14

0.14

TDS (mg/L)

395.00

727.00

516.95

110.60

0.21

EC (uS/cm)

272.00

1500.00

1051.40

279.83

0.27

pH

7.80

8.90

8.17

0.22

0.03