Type

Granites

Schistes & Volcano-sediment

Mafic basic

Surface water

Min

Max

Médiane

n

Min

Max

Median

n

Min

Max

Median

n

Min

Max

Median

n

Ca (mg・L⁻¹)

1.7

61.23

14.82

9

9.23

78.2

35.9

6

4.77

49.7

21.7

6

1.03

23.12

3.78

5

Mg (mg・L⁻¹)

1.4

30.8

3.04

9

0.88

25.3

9.03

6

2.45

47.5

8.67

6

0.33

9.2

2.3

5

Na (mg・L⁻¹)

3

62.7

18.1

9

3.7

34.6

17.7

6

1.6

61.9

12.2

6

1.1

20.6

2.6

5

Si (mg・L⁻¹)

7.5

32

29

9

10.3

33.7

23

6

6.2

19.1

6.8

6

4.8

10.4

5.2

5

K (mg・L⁻¹)

0.3

21.4

2.3

9

1.8

9.1

2.1

6

0.2

4.7

1.7

6

0.2

3.7

3.1

5

HCO₃ (mg・L⁻¹)

18.3

115.9

73.2

9

61

366

143.3

6

6.1

280.6

73.2

6

24.4

164.7

24.4

5

Cl (mg・L⁻¹)

2.1

63.7

6.3

9

2.6

37.6

8.2

6

2.2

55.6

8.2

6

2.05

7.3

2.1

5

SO₄ (mg・L⁻¹)

0.3

113.5

5.1

9

0.4

21.7

5.04

6

0.5

11.34

1.26

6

0.3

1.6

0.4

5

NO₃ (mg・L⁻¹)

0

224.3

2.09

9

0.29

43.1

6.1

6

0

277.5

23.7

6

0

0.47

0

5