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Drinking water standards

Through the Safe Drinking Water Act, the United States Environmental Protection Agency has set a maximum contaminant level of 10 mg/L or 10 ppm of nitrate in drinking water.

An acceptable daily intake (ADI) for nitrate ions was established in the range of 0–3.7 mg (kg body weight) day by the Joint FAO/WHO Expert Committee on Food Additives (JEFCA).