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Hydrogeochemistry and Water Chemistry
Intrinsic biodegradation of MTBE and BTEX in a gasoline-contaminated aquifer
Article first published online: 9 JUL 2010
DOI: 10.1029/97WR00014
Copyright 1997 by the American Geophysical Union.
1944-7973/asset/cover.gif?v=1&s=797107f92f501d54ec880f7cc7998a974ae89f63 "Water Resources Research")
Additional Information
How to Cite
, , , and (1997), Intrinsic biodegradation of MTBE and BTEX in a gasoline-contaminated aquifer, Water Resour. Res., 33(5), 1105–1115, doi:10.1029/97WR00014.
Publication History
- Issue published online: 9 JUL 2010
- Article first published online: 9 JUL 2010
- Manuscript Accepted: 31 DEC 1996
- Manuscript Received: 23 SEP 1996
- Abstract
- References
- Cited By
Three-dimensional field monitoring of a gasoline plume showed rapid decay of toluene and ethylbenzene during downgradient transport with slower decay of xylenes, benzene, and MTBE under mixed aerobic-denitrifying conditions. Decay was most rapid near the source but slower farther downgradient. Effective first-order decay coefficients varied from 0 to 0.0010 d−1 for MTBE, from 0.0006 to 0.0014 d−1 for benzene, from 0.0005 to 0.0063 d−1 for toluene, from 0.0008 to 0.0058 d−1for ethylbenzene, from 0.0012 to 0.0035 d−1 for m-, p-xylene, and from 0.0007 to 0.0017 d−1 for o-xylene. Laboratory microcosm studies confirmed MTBE biodegradation under aerobic conditions; however, the extent of biodegradation was limited.