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Half the developing world population lack access to flush toilets and other forms of improved sanitation; 1.1 billion people defecate in the open. An estimated 750 million people still live without improved water sources. There are serious adverse health consequences of poor access to water, sanitation and hygiene (WASH), particularly in children, including diarrhoea, respiratory illness, trachoma, and death.
Access to safe drinking-water is essential to health, a basic human right and a component of effective policy for health protection. We share the guidelines for Drinking water quality and water safety manual.