[Bases for permissible levels of soluble compounds of Th232, natural thorium, Ra228 and Th228 in the air of industrial premises].
D000398:Air Pollution, Radioactive; D004782:Environmental Health; D008452:Maximum Allowable Concentration; D009787:Occupational Medicine; D011883:Radium; D013910:Thorium
D013910:Thorium; D011883:Radium
K obosnovaniiu dopustimykh norm rastvorimykh soedineniĭ Th232, toriia estestvennogo, Ra228 i Th228 v vozdukhe prozvodstvennykh pomeshcheniĭ.