Time of the year

autumn

autumn

autumn

Autumn

Period

dry

dry

rainy

rainy

Date

25.11. 2005

25.11. 2005

9.12.  2005

5.12.  2005

Location

Špica

zapornice

špica

zapornice

T                 (°C)

9.0

9.5

11.0

14.0

NH4+ (mg/l) (0-5)

0.3

0.5

0.3

0.3

Transitional hardness

5.0

5.5

3.2

9.0

Total hardness °n

16.0

18.0

11.0

10.0

NO3- (mg/l)  (0-150)

< 10-²

< 10-²

< 10-²

< 10-²

NO2- (mg/l)  (0-0.5)

0,025

0,025

0.03

0.04

pH    (4.5-9)           

7.75

6.75

7.5

7.75

PO4-³  (mg/l) (0-3)

0.10

0.25

0.20

0.25

Oxygen (mg/l)

4.6

6.4

11.4

9.7

Biochemical oxygen

5.4

6.9

8.1

1.8