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Water Quality Standards: Nitrate
EPA and WHO drinking water quality standards — MCLs, MCLGs, WHO guideline values, secondary standards, health effects, and treatment methods for regulated contaminants
| contaminant | CAS number | EPA MCLG mg per L (mg/L) | EPA MCL mg per L (mg/L) | WHO guideline mg per L (mg/L) | contaminant category | health effects | standard | treatment methods |
|---|---|---|---|---|---|---|---|---|
| Nitrate | 14797-55-8 | 10 | 10 | 50 | inorganic | Blue baby syndrome (methemoglobinemia) in infants under 6 months | EPA NPDWR 40 CFR 141; WHO GDWQ 4th Ed. | Ion exchange; reverse osmosis; electrodialysis |
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