Drinking water is
water that is intended to be
ingested by humans. Water of sufficient quality to serve as drinking water is termed potable water whether it is used as such or not. Although many sources are utilized by humans, some contain
disease vectors or
pathogens and cause long-term health problems if they do not meet certain
water quality guidelines. Water that is not harmful for human beings is sometimes called safe water, water which is not contaminated to the extent of being unhealthy. The available supply of drinking water is an important criterion of
carrying capacity, the population level that can be supported by planet
Earth.
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