Back to Article
Effect of Industrial Effluent on Irrigation Water Quality of Choba River in the Niger Delta Region of Nigeria
Research Journal of Ecology and Environmental Sciences
| Vol 2, Issue 4
Table 1. FAO guidelines for irrigation water quality parameters
| Parameters | units | FAO guideline |
| pH |
| 6.5-8.4 |
| Electrical Conductivity (EC) | µS/cm | 750 |
| Alkalinity | % | 100 |
| Sodium (Na+) | mg/l | 20 |
| Potassium (K+) | mg/l | 10 |
| Calcium (Ca2+) | mg/l | 200 |
| Magnesium (Mg2+) | mg/l | 250 |
| Chloride (Cl-) | mg/l | 250 |
| Carbonate (CO3-) | mg/l | N/A |
| Bicarbonate (HCO3-) | mg/l | N/A |
| Nitrate (NO3-) | mg/l | 45 |
| Sulphate (SO42+) | mg/l | 200 |
| Phosphate (PO43-) | mg/l | 0.07 |
| Iron (Fe2+) | mg/l | 5 |
| Lead (Pb2+) | mg/l | 5 |