title: [Pollution of the atmospheric air with formaldehyde].
mesh_terms: D000393:Air Pollutants / Q000032:analysis*; D002031:Bulgaria; D005557:Formaldehyde / Q000032:analysis; D012621:Seasons
chemical_list: D000393:Air Pollutants; D005557:Formaldehyde
vernacular_title: Zagriaznenie atmosfernogo vozdukha formal'degidom