[Air pollution, a problem of hygiene].
D000397:Air Pollution; D001580:Benzopyrenes / Q000494:pharmacology; D004391:Dust; D004787:Environmental Pollution; D006920:Hygiene; D007220:Industrial Waste; D013458:Sulfur Dioxide / Q000009:adverse effects / Q000494:pharmacology
D001580:Benzopyrenes; D004391:Dust; D007220:Industrial Waste; D013458:Sulfur Dioxide
Die Verunreinigung der Luft, ein Problem der Hygiene.