||Evaluation of the Mutagenicity of Municipal Sewage Sludge.
Hopke, Philip K. ;
Plewa, Michael J. ;
||Illinois Univ. at Urbana-Champaign. Inst. for Environmental Studies.;Health Effects Research Lab., Research Triangle Park, NC.
Urban areas ;
||Most EPA libraries have a fiche copy filed under the call number shown. Check with individual libraries about paper copy.
Samples of five municipal sewage sludges from Illinois cities have been subjected to a multiorganism testing program to determine the presence or absence of mutagenic activity. Chicago sludge has been the most extensively tested using the Salmonella/microsomal activation assay, the micronucleus test Tradescantia, the wx locus assay in Z. mays, and sister chromatid exchange induction in human lymphocytes. Mutagenic activity has been observed in the sludges from Chicago and Sauget, Illinois. Sludges from primarily domestic sewage do not apparently contain mutagens.