Part II ZINC CONCENTRATIONS (mg/l Zn) FOR DIFFERENT WATER HARDNESS VALUES BETWEEN 10 AND 500 mg/l CaCO3
| Classification of waters | Water hardness (mg/l CaCO3) | |||
|---|---|---|---|---|
| 10 | 50 | 100 | 500 | |
| Salmonid waters (mg/l Zn) | 0.03 | 0.2 | 0.3 | 0.5 |
| Cyprinid waters (mg/l Zn) | 0.3 | 0.7 | 1.0 | 2.0 |