Mutagenic activity in photocopies

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Science  29 Aug 1980:
Vol. 209, Issue 4460, pp. 1037-1039
DOI: 10.1126/science.6996094


Extracts from several different photocopies were mutagenic in the Ames Salmonella assay. The mutagenic behavior was similar for extracts from copies and corresponding toners indicating that toners are directly responsible for the mutagenicity. The mutagenicity is caused by at least two classes of compounds which may be present either alone or in combination in any toner.

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