title: [90th anniversary of national hygienic regulation of chemicals in workplace air].
abstract: The authors followed occurrence and formation of the national hygienic regulation of chemicals in workplace air, since 1920s in historical aspect. Now there is 90th anniversary of the regulation.
authors.forename: K K
authors.initials: KK
authors.lastname: Sidorov
mesh_terms: D000395:Air Pollutants, Occupational / Q000266:history*; D000846:Anniversaries and Special Events; D049673:History, 20th Century; D049674:History, 21st Century; D006801:Humans; D008452:Maximum Allowable Concentration; D016272:Occupational Health / Q000266:history / Q000331:legislation & jurisprudence; D012426:Russia
chemical_list: D000395:Air Pollutants, Occupational