title: 400 million children deprived of safe water.
mesh_terms: D002648:Child; D002669:Child Welfare; D004777:Environment; D014943:Global Health; D006292:Health Priorities; D006801:Humans; D012449:Safety; D014480:United Nations; D014876:Water Pollution / Q000517:prevention & control*; D014881:Water Supply / Q000592:standards*