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Applied and Environmental Microbiology, March 2006, p. 2287-2289, Vol. 72, No. 3
0099-2240/06/$08.00+0 doi:10.1128/AEM.72.3.2287-2289.2006
Copyright © 2006, American Society for Microbiology. All Rights Reserved.
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University of Ottawa, Centre for Research on Environmental Microbiology, Ottawa, Ontario, Canada
Received 17 June 2005/ Accepted 9 January 2006
Laboratory batch tests indicate that addition of sterile municipal sewage biosolids to clay soil from four depths increases the numbers of Escherichia coli isolates recoverable in EC-MUG broth (EC broth with 4-methylumbelliferyl-ß-glucuronide). This effect was most marked for the deeper soil layers, with increases of about 2.6 orders of magnitude in E. coli most probable number.
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