How were acceptable nitrate levels established by EPA?
The acceptable level for nitrate in drinking water was established by the Environmental Protection Agency (EPA) as a safeguard to protect infants. Because of their immature digestive system, infants under six months of age convert nitrate to nitrite which interferes with the oxygen carrying capability of the blood. Therefore, the EPA established the maximum contaminant level for nitrate in drinking water at 10 milligrams per liter or 10 parts per million. Who is affected . . . who is not? Levels of nitrate in Columbus drinking water pose no threat to the majority of people. Only infants less than six months of age are affected when the level of nitrate is above the standard. Pregnant or nursing women need not be concerned about the levels of nitrate in Columbus water. Very little of the nitrate/nitrite consumed by the mother will be passed on to the developing fetus or nursing infant. Many vegetables and processed meats contain nitrates. Water is generally a minor source of nitrate in
