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Simple techniques for treating water at home, such as chlorination, filters, and solar disinfection, and for storing it in safe containers could save a huge number of lives each year. [52] Reducing deaths from waterborne diseases is a major public health goal in developing countries. The global water purification market is worth 22 billion ...
In the United States, 44 million people used self-supply and private water sources in 2010 [13] and about 22% of the rural population uses private wells to access groundwater for their water supply. [14] About 20-60% of the population in Eastern Europe and the former Soviet Union relies on self-supply for water.
Most people associate fluoride with the practice of intentionally adding fluoride to public drinking-water supplies for the prevention of tooth decay. However, fluoride can also enter public water systems from natural sources, including runoff from weathering of fluoride-containing rocks and soils and leaching from soil into groundwater.
Purified water is usually produced by the purification of drinking water or ground water. The impurities that may need to be removed are: inorganic ions (typically monitored as electrical conductivity or resistivity or specific tests) organic compounds (typically monitored as TOC or by specific tests)
The link between water and disease was still not well established and in 1873 the president of the New York board of health declared that "although rivers are great natural sewers, and receive the drainage of towns and cities the natural process of purification, in most cases destroys the offensive bodies derived from sewer and renders them ...
Hippocrates believed that water had to be clean and pure. Rainwater was the best water, but had to be boiled and strained before drinking to get rid of the "bad smell" and to avoid hoarseness of the voice. [3] [4] He designed a crude water filter to “purify” the water he used for his patients. Later known as the “Hippocratic sleeve ...
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