Degradation of the herbicide dicamba was assayed under methane-producing condition using a coastal wetland soil as an inoculum. Benzene ring 14C labeled dicamba was employed and degradative process proceeds through demethoxylation yielding 3,6-dichlorosalicylic acid as the predominant intermediate. The data showed that the degradation rate of dicamba by the enrichment culture achieved 64 %, 91 % and 95% after 7, 16 and 27 days of incubation, respectively; only small quantities of CO2 (0.74%) and CH4 (0.11%) were recovered with insignificant radioactivity. The benzene ring of dicamba was not cleavaged to a significant extent. Future cleaning up of dicamba contaminated environment may require an effective bioremediation techniques.
|Number of pages||3|
|Journal||Huanjing Kexue/Environmental Science|
|State||Published - 2001|
- Anaerobic degradation