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A study found the mean concentration of sodium in softened water to be 278 mg/L. [23] In 2 liters of water—the amount of drinking water typically suggested for an average adult, this constitutes about 22% of the recommended sodium intake by the US CDC and may make a difference to those who need to significantly limit their sodium consumption.
Hard water may be softened to remove these ions. The softening process often substitutes sodium cations. [14] For certain populations, hard water may be preferable to soft water because health problems have been associated with calcium deficiencies and with excess sodium. [15]
Lime softening (also known as lime buttering, lime-soda treatment, or Clark's process) [1] is a type of water treatment used for water softening, which uses the addition of limewater (calcium hydroxide) to remove hardness (deposits of calcium and magnesium salts) by precipitation.
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.
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 drinking too much water, "people are really worried about sodium, which is an electrolyte," he says. ... "Anything in excess is a problem," Nelson says. "Even water is toxic if you have too ...
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