[20th anniversary of the section for establishment of maximum permissible concentrations of noxious substances in the air of production areas].
D000395:Air Pollutants, Occupational / Q000032:analysis; D049673:History, 20th Century; D009787:Occupational Medicine / Q000266:history*; D014116:Toxicology / Q000266:history*; D014586:USSR
D000395:Air Pollutants, Occupational
20 let deiatel'nosti sektsii po ustanovleniiu predel'no dopustimykh kontsentratsiĭ vrednykh veshchestv v vozdukhe rabocheĭ zony