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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 7. Degree of toxicity of Choba river water samples at various sections
| Parameters | Units | PI values along the sections of CHOBA RIVER | ||||
| A | B | C | D | E | ||
| Electrical Conductivity (EC) | µS/cm | 0.31 | 0.17 | 0.72 | 2.01 | 0.23 |
| SAR | - | 0.04 | 0.05 | 0.05 | 0.05 | 0.05 |
| PI | % | 0.39 | 0.47 | 0.35 | 0.31 | 0.56 |
| TPHC | mg/l | 0 | 1.45 | 17.43 | 8.04 | 3.90 |
| Pb | mg/l | 0.05 | 0.07 | 0.07 | 0.04 | 0.02 |
| Fe | mg/l | 0.04 | 0.04 | 0.07 | 0.04 | 0.04 |
| Sum | - | 0.83 | 2.25 | 18.69 | 10.49 | 4.80 |
| CPI | - | 0.14 | 0.38 | 3.12 | 1.75 | 0.80 |
PI=EHQ; PI is the single factor evaluation index