[Meetings]

Environmental Fate and Effects of Gasoline Oxygenates

213th American Chemical Society National Meeting
San Francisco, California; 13-17 April 1997

Sponsored by the Divisions of Environmental Chemistry and Fuel Chemistry

Summary: Fuel oxygenates, particularly methyl t-butyl ether (MTBE), continue to be added to gasoline in many areas of the United States to increase octane ratings and reduce pollutants regulated by the Clean Air Act. Due to its widespread use, high mobility, and limited degradability, MTBE may become widely distributed in both the atmospheric and aquatic environments. At present, these potential environmental impacts, and the possibility of effective remediation, have not yet been fully assessed. This symposium will address all aspects of the fuel oxygenate issue, with emphasis on recent, process-level research into environmental fate, effects, and remediation.

Information on the program was available from the ACS Meetings Website.

Extended Abstracts of 1-4 pages were submitted for each paper. These can be found in Vol. 37, No. 1 of the "Preprint Extended Abstracts" published by the ACS Division of Environmental Chemistry. Copies of this volume are sold out, but a reprinting is planned, so please check back in a few weeks.

Program of the Symposium

Session I: Regulatory Context, Occurrence and Distribution

# Time Wednesday Morning, 16 April 1997
8:30 Opening Remarks. John S. Zogorski
95 8:35 EPA Fuel Programs. C.N. Freed
96 9:00 California's cleaner-burning gasoline regulations. M.H. Scheible
97 9:25 Air quality effects of the winter oxyfuel program. C.J. Howard, A. Russell, R. Atkinson, J. Calvert
98 9:50 Drinking water health advisory for methyl tertiary-butyl ether. M.M. Gomez-Taylor, C.O. Abernathy, J.T. Du
10:15 Intermission
99 10:40 Preliminary assessment of the occurrence and possible sources of MTBE in groundwater in the United States, 1993-1994. P.J. Squillace, J.S. Zogorski, W.G. Wilber, C.V. Price
100 11:05 Occurrence of the gasoline oxygenate MTBE and BTEX compounds in municipal stormwater in the United States, 1991-95. G.C. Delzer, J.S. Zogorski, T.J. Lopes
101 11:30 MTBE: Occurrence and fate in source-water supplies. M.S. Dale, R.F. Losee, E.W. Crofts, M.K. Davis

Session II: Atmospheric and Physico-Chemical Processes

# Time Wednesday Afternoon, 16 April 1997
05 min Opening Remarks. Paul G. Tratnyek
120 1:35 Atmospheric chemistry and urban air concentrations of MTBE and ethanol. D. Grosjean, E. Grosjean, R.A. Rasmussen
121 2:00 Impact of the oxyfuel program on ambient CO levels. J.R. Cook, P. Enns, M. S. Sklar
122 2:25 Effects and effectiveness of using oxygenated fuels in the Denver metropolitan area. L.G. Anderson, P. Wolfe, E.Wilkes
123 2:50 Release of MTBE and other reformulated gasoline vapor constituents during vehicle refueling and storage tank loading. C.J. Quigley, D.T. Allen, R.L. Corsi
3:15 Intermission
124 3:40 The urban atmosphere as a non-point source for the transport of MTBE and other volatile organic compounds (VOCs) to shallow groundwater. J.F. Pankow, N.R. Thompson, R.L. Johnson, A.L. Baehr, J.S. Zogorski
125 4:05 Cosolvent effects on the dissolution of polynuclear aromatic hydrocarbons due to spills of oxygenated fuels in the subsurface environment. C.S. Chen, P.S.C. Rao, J.J. Delfino
126 4:30 Modeling cosolvency effects on BTEX partitioning from reformulated gasolines. S.E. Heermann, S.E. Powers

Session III: Fate and Remediation in Groundwater

# Time Thursday Morning, 17 April 1997
8:30 Introductory Remarks, Bruce J. Bauman
226 8:35 Analysis of dissolved benzene plumes and methyl tertiary butyl ether (MTBE) plumes in ground water at leaking underground fuel tank (LUFT) sites. A.M. Happel, E. Beckenbach, L. Savalin, H. Temko, R. Rempel, B. Dooher, D. Rice
227 9:00 Assessing the in situ degradation of methyl tert-butyl ether (MTBE) by product identification at the sub-ppb level using direct aqueous injection GC/MS. C.D. Church, L.M. Isabelle, J.F. Pankow, P.G. Tratnyek, D.L. Rose
228 9:25 Occurrence of MTBE and tert-butyl alcohol in a gasoline-contaminated aquifer. J.E. Landmeyer, J.F. Pankow, C.D. Church
229 9:50 The Borden field experiment - Where has the MTBE gone? M. Schirmer, J.F. Barker, C.E. Hubbard, C.D. Church, J.F. Pankow, P.G. Tratnyek
10:15 Intermission
230 10:40 MTBE and BTEX transport across the water table to the unsaturated zone at a gasoline-spill site in beaufort, S.C. A.L. Baehr, R.J. Baker, M.A. Lahvis
231 11:05 Demonstrating intrinsic bioremediation of MTBE and BTEX in ground water at a service station site. R.E. Payne, N.J. Novick, M.N. Gallagher
232 11:30 Biotreatment of MTBE-contaminated groundwater. D.C. Mosteller, K.F. Reardon, A.W. Bourquin, B. Desilets, D. Dumant, R. Hines, S. Kilkenny

Session IV: Remediation and Impacts

# Time Thursday Afternoon, 17 April 1997
1:30 Introductory Remarks, Anne M. Happel
241 1:35 Effects of oxygen and temperature on the biodegradation of MTBE. K. Park, R.M. Cowan
242 2:00 In-situ biodegradation of MTBE using biosparging. M. Javanmardian, H.A. Glasser
243 2:25 Effect of ethanol on anaerobic toluene degradation in aquifer microcosms. C.S. Hunt, L.A. Cronkhite, H.X. Corsueil, P.J. Alverez
244 2:50 Intrinsic bioremediation of MTBE and BTEX: Field and laboratory results. R.C. Borden
3:15 Intermission
245 3:40 Aquatic toxicity data for methyl tertiary-butyl ether (MTBE): Current status, future research. E.R. Mancini
246 4:05 Evaluation of the acute and chronic aquatic toxicity of methyl tertiary-butyl ether (MTBE). W.A. Stubblefield, S.L. Burnett, J.R. Hockett, E.R. Mancini
247 4:30 Estimating the risks and safety of methyl-tertiary-butyl ether (MTBE) and tertiary butyl alcohol (TBA) in tap water from exposures of varying duration. R.G. Tardiff, B.R. Stern

Session V: Posters

# Wednesday Evening, 16 April 1997, 5:00-7:00
207 Distribution of MTBE in ground water in New England by aquifer type and land use. S.J. Grady
208 Occurrence of MTBE in surface and ground water, Long Island, New York, and New Jersey. P.E. Stackelburg, A.K. O'Brien, S.A. Terracciano
209 Physico-chemical properties of MTBE and predictions of preffered environmental fate and compartmentalization. D. Jeffrey
210 MTBE in water from fractured-bedrock aquifers, Southcentral, Pennsylvania. B.D. Lindsey, K.J. Breen, and M.H. Daly
211 Occurrence and movement of MTBE and other organic compounds through the urban hydrologic cycle. A.L. Baehr, P.E. Stackelburg, R.J. Baker, L.J. Kauffman, J.A. Hopple, M.A. Ayers
212 Issues associated with the toxicological data on MTBE. M. Stelljes
213 The effect of MTBE on the treatability of petroleum hydrocarbons in water. A.S. Sevilla, P.R. Beaver, P. Cherry
214 Determination of biodegradation potential of methyl tertiary butyl ether in laboratory microcosms. P.A. Drobat, A. Agrawal, C.A. Bleckmann
215 Sampling and analysis of methyl t-butyl ether in ambient air at selected locations in California. M. Poore, B. Chang, F. Niyati, S. Madden
216 Threshold odor numbers of MTBE and other fuel oxygenates. Y.F. Shen, S.R. Fitzsimmons, J.M.Davis, M.P. Wehner, M. Rigby

The Symposium Organizers:

Paul G. Tratnyek, Oregon Graduate Institute, P.O. Box 91000, Portland, OR, 97291-1000, 503-690-1023, Fax: 503-690-1273, tratnyek@ese.ogi.edu

Bruce Bauman, American Petroleum Institute, 1220 L. St., Washington, DC, 20005, 202-682-8345, Fax: 202-682-8270, bauman@api.org

John Zogorski, U.S. Geological Survey, WRD, 1608 Mt. View Rd., Rapid City, SD, 57702, 605-394-1780, Fax: 605-394-5373, jszogors@usgs.gov

Registration, hotels, and other information on the meeting: American Chemical Society
PDF version of the original announcement for this symposium: Call for Papers
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Paul G. Tratnyek, Assistant Professor Oregon Graduate Institute of Science & Technology,
Department of Environmental Science and Engineering, P.O. Box 91000, Portland, OR, 97291-1000 USA,
Phone: 503/690-1023, Fax: 503/690-1273, Email: tratnyek@ese.ogi.edu

http://www.ebs.ogi.edu/~tratnyek/mtbe.html
Last Modified: 20 April 1997