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Chloramine is a disinfectant used to treat drinking water and has been used by water utilities since the 1930s. Chloramine can kill germs in water pipes longer than chlorine, a disinfectant that ...
Chloramination is the treatment of drinking water with a chloramine disinfectant. [1] Both chlorine and small amounts of ammonia are added to the water one at a time which react together to form chloramine (also called combined chlorine), a long lasting disinfectant.
Chloramine also has a much lower, but still active, tendency than free chlorine to convert organic materials into chlorocarbons such as chloroform and carbon tetrachloride. Such compounds have been identified as carcinogens and in 1979 the United States Environmental Protection Agency (EPA) began regulating their levels in US drinking water. [6]
A newly identified chemical byproduct may be present in drinking water in about a third of U.S. homes, a study found. ... Some 113 million U.S. residents receive chloramine-treated water from ...
Since the 1990s, many public systems have switched to inorganic chloramine, a chlorine derivative, to purify water supplies. Systems serving about 113 million people in the U.S. use this process.
Ion chromatography, a method of separating ions and ionizable polar molecules, was used to separate the chloronitramide anion from the many salts present in water samples containing it, which otherwise made it difficult to use mass spectrometry; the water salinity was higher than that of saltwater.
The Safe Drinking Water Act, which was passed by Congress in 1974, regulates the country’s drinking water supply, focusing on waters that are or could be used for drinking. This act requires ...
In fact, the Army Corps of Engineers, which is responsible for the Washington Aqueduct that supplies water to WASA, rejected a recommendation to add phosphates to the water to prevent lead leaching in the mid-1990s.) [1] The change to chloramine was made after the EPA issued regulations concerning disinfection byproducts formed when chlorine ...
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