Evaluation of the mutagenicity of combustion particles from several common biomass fuels in the Ames/Salmonella microsome test.
We have evaluated the mutagenicity of dichloromethane extracts of combustion particles from several biomass fuels that are commonly used in developing countries in Salmonella strains TA98 +/- S9 and TA100 +/- S9. Combustion-particle extracts from dried cow dung and crop residue exhibited mutagenic potencies similar to wood-smoke extracts (0.0-1.0 rev./microgram extract). However, extracts from coconut-shell-smoke particles showed relatively potent direct-acting mutagenicity (1.6 rev./micrograms, TA98-S9). Results from testing this sample in nitroreductase- and acetylase- deficient strains TA98NR and TA98 (1,8-DNP-6) revealed no contribution from nitroarenes.
Bell
D A
DA
Department of Environmental Sciences and Engineering, University of North Carolina, Chapel Hill 27514.
Kamens
R M
RM
D000397:Air Pollution; D003059:Cocos / Q000633:toxicity; D004463:Ecology; D005243:Feces; D006361:Heating; D008752:Methylene Chloride / Q000633:toxicity*; D009152:Mutagenicity Tests; D010944:Plants; D012475:Salmonella / Q000235:genetics; D012906:Smoke
D012906:Smoke; D008752:Methylene Chloride