Open Access
Table 1
The mean values of conductivity and pH from the study sites.
| Study sites | Conductivity (µS/cm) | pH | Oxygen (mg l−1) | Temperature (°C) |
|---|---|---|---|---|
| Lake Czaplino | 327 | 7.0 | 8.3 | 17 |
| Lake Iławskie | 368 | 8.5 | 8.6 | 18 |
| Lake Sosno | 369 | 8.3 | 8.6 | 17 |
| Pond in Strzemieszyce Wielkie | 810 | 7.4 | 7.3 | 19 |
| Valley of three ponds area in Katowice | 740 | 8.3 | 7.8 | 18 |
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