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The water in the Des Moines River is near the maximum legal level of nitrate concentrations for drinking water, and the EPA has declared much of the fish in the river unsafe to eat. [ 9 ] Nitrate concentration estimations were made from 1980 to 2010 at a site of the Mississippi River above the Old River Outflow Channel, which is also known as ...
As they monitored these shifts, the researchers discovered that nitrate concentrations in shallow groundwater exceeded the Environmental Protection Agency’s drinking water safety thresholds.
Nitrate levels above 10 mg/L (10 ppm) in groundwater can cause "blue baby syndrome" (acquired methemoglobinemia). [18] Drinking water quality standards in the European Union stipulate less than 50 mg/L for nitrate in drinking water. [19] The linkages between nitrates in drinking water and blue baby syndrome have been disputed in other studies.
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. [ 18 ] An acceptable daily intake (ADI) for nitrate ions was established in the range of 0–3.7 mg (kg body weight) −1 day −1 by the Joint FAO/WHO Expert Committee on ...
Des Moines Water Works its asking its 600,000 customers to not water their lawns, saying it will be unable to meet federal limits on nitrate levels with rising concentrations in the Des Moines and ...
Advocates say they're pleased the Minnesota Legislature put $16 million toward solving southeast Minnesota's nitrate pollution problem, but some are concerned lawmakers shortchanged efforts to ...
A documented 98% of the state has access to drinkable water, though some studies note that access disparities exist. [15] Despite modern data and methods for agricultural safety, 92 water systems in the Central Valley were attached to wells containing illegal levels of nitrates between 2005 and 2008, impacting the 1,335,000 residents in the ...
Under the LCR, if tests show that the level of lead in drinking water is in the area of 15 ppb or higher, it is advisable—especially if there are young children in the home—to replace old pipes, to filter water, or to use bottled water. EPA estimates that more than 40 million U.S. residents use water "that can contain lead in excess of 15 ppb".