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Science 9 January 1981:
Vol. 211. no. 4478, pp. 180 - 182
DOI: 10.1126/science.7444461
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Articles

Science, Vol 211, Issue 4478, 180-182
Copyright © 1981 by American Association for the Advancement of Science

articles

Mutagenicity of fly ash particles in Paramecium

J Smith-Sonneborn, RA Palizzi, C Herr, and GL Fisher

Paramecium, a protozoan that ingests nonnutritive particulate matter, was used to determine the mutagenicity of fly ash. Heat treatment inactivated mutagens that require metabolic conversion to their active form but did not destroy all mutagenicity. Extraction of particles with hydrochloric acid, but not dimethyl sulfoxide, removed detectable mutagenic activity.




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