Mutagenicity of Filtrates from Respirable Coal Fly Ash

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Science  06 Jan 1978:
Vol. 199, Issue 4324, pp. 73-75
DOI: 10.1126/science.199.4324.73


Incubation of histidine-requiring auxotrophs of the bacterium Salmonella typhimurium with cyclohexane-, saline-, and serum-soluble surface components of respirable fly ash particles produced an increased number of revertants in two frame-shift tester strains. The results are consistent with the hypothesis that both organic and inorganic mutagens are present in coal fly ash.