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WHO standards of pesticide residues for drinking water quality (WHO, 2008).
| Quality Parameter | WHO Standard (in ppm) |
|---|---|
| 2,4-DDD | 0.001 |
| 2,4-DDT | 0.001 |
| 4,4-DDT | 0.001 |
| Aldrin | 0.00003 |
| Carbofuran | 0.007 |
| Dieldrin | 0.00003 |
| Dimenthoate | 0.006 |
| Endosulfane | 0.00025 |
| Endrin | 0.0006 |
| Lindane | 0.002 |
| Chlorpyrifos | 0.03 |
| Heptachlor | 0.00003 |
