title: [Problems of air purity maintenance in metallurgy].
mesh_terms: D000397:Air Pollution / Q000517:prevention & control*; D004391:Dust; D004787:Environmental Pollution; D005374:Filtration / Q000295:instrumentation; D008669:Metallurgy; D009787:Occupational Medicine
chemical_list: D004391:Dust
vernacular_title: Fragen der Luftreinhaltung in der Metallindustrie.