title: Mutagenicity of air samples from various combustion sources.
abstract: The emission of mutagens from various combustion sources was compared. Flue gas samples from power plants and boilers burning coal, oil and wood were studied. Little or no mutagenic activity was observed in samples from big boilers operated under optimal conditions. The mutagenic activity of emission samples from different boiler systems burning the same fuel varied considerably. This variation was larger than the difference obtained from boilers of comparable size utilizing different fuels. The highest mutagenic activity was observed in samples from a small coal combustion unit, utilizing the fluidized-bed technique. In this case the activity was highest without metabolic activation. Extracts from all samples contained toxic compounds that, in high doses, inhibited mutagenicity.
mesh_terms: D000393:Air Pollutants / Q000009:adverse effects* / Q000032:analysis; D000818:Animals; D003031:Coal; D004305:Dose-Response Relationship, Drug; D005648:Fuel Oils; D007221:Industry; D009153:Mutagens; D011083:Polycyclic Compounds / Q000032:analysis; D051381:Rats; D012475:Salmonella / Q000187:drug effects
chemical_list: D000393:Air Pollutants; D003031:Coal; D005648:Fuel Oils; D009153:Mutagens; D011083:Polycyclic Compounds