Biodegradation of ethylene dibromide (1,2-dibromoethane [EDB]) in microcosms simulating in situ and biostimulated conditions

► The study evaluated the biodegradation of ethylene dibromide under natural and biostimulated conditions of EDB-contaminated aquifer. ► EDB degraded anaerobic in situ. ► EDB did not degrade aerobic in situ but degraded in presence of methane. ► Lack of EDB degradation for aerobic groundwater explains why EDB becomes persistent after long time exposure of EDB. ► Aerobic cometabolism with methane injection has potential for the field bioremediation of EDB.