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  2. Does a glass of water ever go bad? Experts weigh in. - AOL

    www.aol.com/lifestyle/does-glass-water-ever-bad...

    After drinking from the same bottle all day, “you’ll feel like something is off, that it smells or it doesn’t taste right anymore,” says Riese. He even advises washing your water bottle a ...

  3. Is It Bad to Drink Water That’s Been Sitting ... - AOL

    www.aol.com/bad-drink-water-sitting-overnight...

    You probably know that drinking water left in an open glass is not super sanitary. “If it’s allowed to incubate for hours, that could potentially contaminate the water, and make you ill by ...

  4. Water stagnation - Wikipedia

    en.wikipedia.org/wiki/Water_stagnation

    Water stagnation for as little as six days can completely change bacterial community composition and increase cell count. [3] Stagnant water may be classified into the following basic, although overlapping, types: Water body stagnation (stagnation in swamp, lake, lagoon, river, etc.) Surface and ground water stagnation; Trapped water stagnation.

  5. Water fluoridation - Wikipedia

    en.wikipedia.org/wiki/Water_fluoridation

    Fluoridation does not affect the appearance, taste or smell of drinking water. [1] Water fluoridation is the addition of fluoride to a public water supply to reduce tooth decay. Fluoridated water contains fluoride at a level that is effective for preventing cavities; this can occur naturally or by adding fluoride. [2]

  6. Sulfur water - Wikipedia

    en.wikipedia.org/wiki/Sulfur_water

    Sulfur water (or sulphur water) is a condition where water is exposed to hydrogen sulfide gas, giving it a distinct "rotten egg" smell. This condition has different purposes in culture varying from health to implications for plumbing.

  7. The Pros and Cons of Drinking Water Before Bed - AOL

    www.aol.com/pros-cons-drinking-water-bed...

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  9. Does a glass of water ever go bad? Experts weigh in. - AOL

    www.aol.com/news/does-a-glass-of-water-ever-go...

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