[The chimney-sweeping trade and the public duty of maintaining air purity].
D000388:Air / Q000032:analysis; D000397:Air Pollution / Q000517:prevention & control*; D002248:Carbon Monoxide / Q000032:analysis; D004391:Dust / Q000032:analysis / Q000517:prevention & control; D005860:Germany, West; D006361:Heating; D006801:Humans; D009790:Occupations; D011786:Quality Control; D013458:Sulfur Dioxide / Q000032:analysis
D004391:Dust; D013458:Sulfur Dioxide; D002248:Carbon Monoxide
Schornsteinfegerhandwerk und öffentliche Aufgabe zur Reinhaltung der Luft.