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BOD and COD of different industrial effluents used for irrigation in Hattar area effluent (Values are means of 5 samples; P>0.05)
| Effluent | BOD (mg/L) | COD (mg/L) |
| Water | 0 | 60 |
| Textile | 475 | 160 |
| Ghee | 918 | 740 |
| Chemical | 300 | 110 |
| Juncture | 1100 | 790 |
| City sewage | 225 | 500 |
| NEQS | 80 | 150 |
