7 Water Quality in Main Dam Reservoirs in Poland
167
mean 6,49
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
8.0
9.0
17-09-01 0:00
17-09-02 0:00
17-09-03 0:00
17-09-04 0:00
17-09-05 0:00
17-09-06 0:00
17-09-07 0:00
17-09-08 0:00
17-09-09 0:00
17-09-10 0:00
17-09-11 0:00
17-09-12 0:00
17-09-13 0:00
17-09-14 0:00
17-09-15 0:00
17-09-16 0:00
17-09-17 0:00
17-09-18 0:00
17-09-19 0:00
17-09-20 0:00
17-09-21 0:00
17-09-22 0:00
17-09-23 0:00
17-09-24 0:00
17-09-25 0:00
17-09-26 0:00
17-09-27 0:00
17-09-28 0:00
17-09-29 0:00
17-09-30 0:00
17-10-01 0:00
ConcentraƟon (mg/L)
Time
(days hrs)
Dissolved oxygen
mean 6,28
1.0
3.0
5.0
7.0
9.0
11.0
13.0
15.0
17-09-01 0:00
17-09-02 0:00
17-09-03 0:00
17-09-04 0:00
17-09-05 0:00
17-09-06 0:00
17-09-07 0:00
17-09-08 0:00
17-09-09 0:00
17-09-10 0:00
17-09-11 0:00
17-09-12 0:00
17-09-13 0:00
17-09-14 0:00
17-09-15 0:00
17-09-16 0:00
17-09-17 0:00
17-09-18 0:00
17-09-19 0:00
17-09-20 0:00
17-09-21 0:00
17-09-22 0:00
17-09-23 0:00
17-09-24 0:00
17-09-25 0:00
17-09-26 0:00
17-09-27 0:00
17-09-28 0:00
17-09-29 0:00
17-09-30 0:00
17-10-01 0:00
ConcentraƟon (mg/L)
Time
(days hrs)
Nitrates NO 3 -
Fig. 7.19 Examples of changes in the concentration of dissolved oxygen and nitrates in water of
the Goczałkowice Reservoir in September 2017 (time step of the horizontal axis—1 day)