title: [Hygienic standards for nitrogen dioxide and sulfurous anhydride in the air of a work zone].
mesh_terms: D000393:Air Pollutants; D000395:Air Pollutants, Occupational; D000818:Animals; D008297:Male; D008452:Maximum Allowable Concentration; D009585:Nitrogen Dioxide / Q000633:toxicity*; D051381:Rats; D013458:Sulfur Dioxide / Q000633:toxicity*; D013997:Time Factors
chemical_list: D000393:Air Pollutants; D000395:Air Pollutants, Occupational; D013458:Sulfur Dioxide; D009585:Nitrogen Dioxide
vernacular_title: O gigienicheskom normirovanii dvuokisi azota i sernistogo angidrida v vozdukhe rabocheĭ zony.