Sample 01

Sample 02

Sample 03

Sample 04

Sample 05

Sampling date

Jul. 28, 2005

Aug. 30, 2005

Oct. 7, 2006

Jan. 27, 2006

Apr. 13, 2006

pH

5.7

6.1

6.44

5.55

5.84

Oxygen concentration (mg/l)

4.2

4.2

3.3

3.7

5.82

Water temperature (˚C)

25.2

30

*

24.5

29

Air temperature (˚C )

29.7

39

27

25

29.5

Conductivity (µS/cm )

*

22.9

26.5

25.9

26.3