Evaluation of the mutagenicity of combustion particles from several common biomass fuels in the Ames/Salmonella microsome test |
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| Authors: | D A Bell R M Kamens |
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| Institution: | Department of Environmental Sciences and Engineering, University of North Carolina, Chapel Hill 27514. |
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| Abstract: | 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. |
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