[Maximum permissible concentrations of radon, thoron, actinon and their daughter products in water and in air].
D000186:Actinium / Q000592:standards*; D000398:Air Pollution, Radioactive; D006283:Health Physics; D008452:Maximum Allowable Concentration; D011886:Radon / Q000592:standards*; D014878:Water Pollution, Radioactive
D000186:Actinium; D011886:Radon
O predel'no dopustimykh kontsentratsiiakh radona, torona, aktinona i ikh dochernikh produktov v vode i v vozdukhe.