title: [Chimney and the preservation of clean air].
mesh_terms: D000392:Air Movements; D000397:Air Pollution / Q000517:prevention & control*; D005860:Germany, West; D006361:Heating; D012906:Smoke; D013458:Sulfur Dioxide
chemical_list: D012906:Smoke; D013458:Sulfur Dioxide
vernacular_title: Schornstein und Luftreinhaltung.