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For example, nitrate levels are subject to monitoring to comply with drinking water quality standards in the United States and other countries. [ 24 ] [ 25 ] The link between blue baby syndrome and nitrates in drinking water is widely accepted, but as of 2006 some studies indicated that other contaminants or dietary nitrate sources, might also ...
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. [20] [21] The syndrome outbreaks might be due to other factors than elevated nitrate concentrations in drinking water. [22]
Elevated nitrate in groundwater is a concern for drinking water use because nitrate can interfere with blood-oxygen levels in infants and cause methemoglobinemia or blue-baby syndrome. [28] Where groundwater recharges stream flow, nitrate-enriched groundwater can contribute to eutrophication , a process that leads to high algal population and ...
While some bottled water is from a spring or filtration system, research shows that nearly 65% of bottled water sold in the U.S. comes from municipal tap water. But Rumpler says there can be ...
A newly identified chemical byproduct may be present in drinking water in about a third of U.S. homes, a study found. Scientists think it might be toxic but do not yet know.
A group of international researchers has discovered a previously unknown chemical compound in U.S. drinking water — and it could be toxic.. The compound — known as chloronitramide anion — is ...
Industrial production of sodium nitrite follows one of two processes, the reduction of nitrate salts, or the oxidation of lower nitrogen oxides. One method uses molten sodium nitrate as the salt, and lead which is oxidized, while a more modern method uses scrap iron filings to reduce the nitrate. [4] [84] NaNO 3 + Pb → NaNO 2 + PbO
Paul Karason (November 14, 1950 – September 23, 2013) was an American from Bellingham, Washington, whose skin was a purple-blue color. [1]Karason was fair skinned and freckled until the early 1990s.