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Mean concentration of heavy metals.
| Heavy metal | Value (mg/L) |
BIS: 10500 (Drinking water) |
CPCB (Inland surface water) |
WHO (Drinking water) |
|---|---|---|---|---|
| Acceptable limit (mg/L) | Permissible limit (mg/L) | limit (mg/L) | ||
| Nickel | 0.0254 | 0.02 | 3 | 0.02 |
| Zinc | 1.3651 | 5 | 5 | 3 |
| Copper | 0.0813 | 0.05 | 3 | 2 |
| Chromium | 0.0352 | 0.05 | 2 | 0.05 |
| Cadmium | 0.0374 | 0.003 | 2 | 0.003 |
| Iron | 6.4672 | 0.3 | 3 | 0.3 |
| Lead | 0.0212 | 0.01 | 0.1 | 0.01 |
