| Water quality Parameters | El-Burullus Lake | El-Manzala Lake | El-Bardawil Lake | |||
| range | average ± SD | range | average ± SD | range | average ± SD | |
| Water temp. (˚C) | 22.50 - 26.70 | 25.05 ± 7.88 | 23.30 - 25.50 | 24.80 ± 5.79 | 20.70 - 22.70 | 22.06 ± 2.16 |
| pH (SU) | 8.56 - 9.44 | - | 7.56 - 8.96 | - | 7.99 - 8.18 | - |
| Salinity (g·l−1) | 2.23 - 19.72 | 6.39 ± 10.48 | 1.87 - 11.19 | 3.61 ± 2.43 | 40.68 - 61.15 | 48.66 ± 8.10 |
| SpCond (mS/cm) | 3.89 - 29.52 | 10.65 ± 10.48 | 3.30 - 17.50 | 7.82 ± 2.43 | 55.30 - 78.80 | 64.69 ± 8.10 |
| DO (mg·l−1) | 3.90 - 15.28 | 8.88 ± 3.10 | 4.1 - 11.38 | 7.16 ± 3.20 | 6.75 - 8.37 | 7.60 ± 1.27 |
| H2S (ml·l−1) | ND | ND | ND | ND | ND | ND |
| BOD (mg·l−1) | 9.27 - 46.32 | 16.19 ± 9.62 | 59.02 - 126.83 | 79.70 ± 4.17 | 1.46 - 6.58 | 1.44 ± 2.47 |
| COD (mg·l−1) | 34.00 - 69.36 | 53.62 ± 27.88 | 270.00 - 705.00 | 490.91 ± 25.1 | 9.41 - 20.06 | 13.77 ± 3.13 |