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Abstract
Laboratory experiments were conducted to study the degradation of acifluorfen 5‐[2‐chloro‐4‐ (trifluoromethyl)‐phenoxy]‐2‐nitrobenzoic acid by a mixed microbial population.
Concentrations of acifluorfen up to 100 mg/1 had no inhibitory effect on the growth of microbial culture.
The microorganisms degraded acifluorfen through a cometabolic process in presence of 2‐nitrobenzoate.
The degradation rate of acifluorfen, determined by liquid chromatography analysis in batch cultures incubated under oxygen and oxygen‐limited conditions were compared. The degradation was slower under oxygen than oxygen‐limited conditions. Aminoacifluorfen was produced in both conditions.