Parameters | N | Undredged Mean ± SD | Dredged Mean ± SD | LASEPA Standard |
Colour | 3 | 180.7 ± 145.5 | 290.3 ± 107.8 | 250 Pt.Co.APHA |
Temperature | 3 | 25.7 ± 1.7 | 25.9 ± 1.2 | 40 |
pH | 3 | 6.7 ± 1.7 | 7.3 ± 1.3 | 5.5 - 9.0 |
Turbidity | 3 | 16.9 ± 2.2 | 23.1 ± 0.5 | FTU |
Conductivity | 3 | 70.2 ± 8.5 | 82.4 ± 19.0 | µS/cm |
Total suspended solid | 3 | 24.0 ± 15.1 | 2.7 ± 3.2 | 100 mg/l |
Total dissolved solid | 3 | 114.7 ± 99.3 | 155.3 ± 49.1 | 2100 mg/l |
Total solid | 3 | 138.7 ± 110.4 | 178.0 ± 49.5 | 2200 mg/l |
Total acidity (mg/l) | 3 | 36.0 ± 6.1 | 50.3 ± 7.5 | NS |
Total alkalinity (mg/l) | 3 | 86.7 ± 46.2 | 90.0 ± 39.1 | NS |
Chloride | 3 | 29.7 ± 4.7 | 29.3 ± 5.9 | 250 mg/l |
Nitrate | 3 | 1.3 ± 0.2 | 0.3 ± 0.3 | - |
Phosphate | 3 | 1.1 ± 0.1 | 1.5 ± 0.3 | - |
Sulphate | 3 | 4.0 ± 1.0 | 4.3 ± 2.3 | - |
Phenol | 3 | 0.0 ± 0.0 | 0.0 ± 0.0 | 1.0 mg/l |
Oil and Grease | 3 | 0.0 ± 0.0 | 0.0 ± 0.0 | 10.0 mg/l |
Dissolved oxygen | 3 | 5.5 ± 0.3 | 5.5 ± 0.5 | Not Less than 2 |
COD | 3 | 0.3 ± 0.6 | 0.0 ± 0.0 | 200 mg/l |
BOD | 3 | 0.1 ± 0.1 | 0.0 ± 0.0 | 50 mg/l |
Iron | 3 | 0.3 ± 0.3 | 0.5 ± 0.4 | 10.0 mg/l |
Sodium | 3 | 1.5 ± 0.4 | 2.4 ± 1.9 | - |
Potassium | 3 | 0.4 ± 0.1 | 0.3 ± .0.5 | 200.00 mg/l |
Total Plate Count | 3 | 73.3 ± 49.2 | 143.3 ± 77.7 | 0.5 mg/l |