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Water supply
Water supply is the provision of water by public utilities, commercial organisations, community endeavors or by individuals, usually via a system of pumps and pipes. Irrigation is covered separately.
==Global access to clean water==
In 2010, about 85% of the global population (6.74 billion people) had access to piped water supply through house connections or to an improved water source through other means than house, including standpipes, water kiosks, spring supplies and protected wells. However, about 14% (884 million people) did not have access to an improved water source and had to use unprotected wells or springs, canals, lakes or rivers for their water needs.〔Progress on Sanitation and Drinking-water: 2010 Update, UNICEF, WHO/UNICEF Joint Monitoring Programme for Water Supply and Sanitation, ISBN 978-92-4-156395-6〕
A clean water supply - in particular water that is not polluted with fecal matter from lack of sanitation - is the single most important determinant of public health. Destruction of water supply and/or sanitation infrastructure after major catastrophes (earthquakes, floods, war, etc.) poses the immediate threat of severe epidemics of waterborne diseases, several of which can be life-threatening.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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