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DEGRADATION OF PROPANIL BY BACTERIAL ISOLATES AND MIXED POPULATIONS FROM A PRISTINE LAKE
Citation:
Correa, I. AND W. Steen. DEGRADATION OF PROPANIL BY BACTERIAL ISOLATES AND MIXED POPULATIONS FROM A PRISTINE LAKE. U.S. Environmental Protection Agency, Washington, D.C., EPA/600/J-95/069, 1995.
Description:
The microbial transformation rates of propanil, a commonly used herbicide, were investigated using water from a pristine lake in northeast Georgia. Microbial degradation rates were measured using natural water microflora amended with five bacterial species (Aerobacter aerogenes, Aeromonas hydrophilia, Acinetobacter calcoaceticus, Proteus mirabilis, and Aeromonas salmonicida) isolated from the same lake, and the five isolates individually. Transformation rate constants for propanil were compared for mixed microbial assemblages and isolates at similar initial bacterial concentrations. Degradation started within 60 hours and was completed by 160 hours in all experiments.