title: [The "barrier" role of modern water purification works in relation to chemical ingredients].
mesh_terms: D012498:Sanitary Engineering; D014586:USSR; D014867:Water / Q000032:analysis; D014876:Water Pollution; D014881:Water Supply
chemical_list: D014867:Water
vernacular_title: "Bar'ernaia" rol' sovremennykh ochistnykh sooruzheniĭ v otnoshenii khimicheskikh ingredientov.