title: [Safety factor at various stages marking the progress of safe levels of exposure to the effects of occupational poisons].
mesh_terms: D004781:Environmental Exposure; D004785:Environmental Pollutants / Q000032:analysis*; D006801:Humans; D008452:Maximum Allowable Concentration; D009787:Occupational Medicine / Q000592:standards*; D014586:USSR
chemical_list: D004785:Environmental Pollutants
vernacular_title: O koeffitsiente zapasa na etapakh razvitiia ucheniia o bezopasnykh urovniakh vozdeitstviia prefessional'nykh iadov