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Table 4 The results of the water quality analysis

From: Torrent rainfall-induced large-scale karst limestone slope collapse at Khanh waterfall, Hoa Binh Province, Vietnam

Measurement point

Measuring date

T

EC

pH

Na+

K+

Ca2+

Mg2+

alk

Cl−

NO3−

SO42−

SiO2

[℃]

[mS/m]

 

[mg/L]

[mg/L]

[mg/L]

[mg/L]

[meq/L]

[mg/L]

[mg/L]

[mg/L]

[mg/L]

G005 Spring water

2019/9/10 11:33

25.8

33

7.50

0.8

0.1

66.8

1.98

3.42

0.3

0.7

3.6

7.3

G008 Spring water

2019/9/10 13:16

26.0

35

7.31

1.1

0.8

60.0

8.34

3.47

0.7

0.7

3.3

7.4

G010 Surface water

2019/9/10 14:04

25.5

28

8.03

1.3

1.1

45.6

8.43

2.85

0.5

2.2

4.9

10.5

G011 Spring water

2019/9/10 14:18

25.9

30

8.12

1.2

1.1

47.4

9.29

3.06

0.7

4.8

4.0

9.9

G012 Surface water

2019/9/10 14:33

25.5

28

8.09

1.3

1.0

43.0

8.53

2.8

0.4

3.4

3.9

10.8