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Pedro Alvarez
 

Conference Proceedings

and Other Technical Publications

Da Silva, Marcio L.B., D.Y. Lyon, and P.J.J. Alvarez (2005). Bioremediation: From Microscopic Observations to Macroscopic Implications. 10th International Symposium on Microbial Ecology. Cancun, Mexico. August 22-27,2004.

Sutton B. and P. J.J. Alvarez (2004). RDX degradation by Shewanella algae BrY and by its biogenic iron mineral. Proc. In Situ and On-Site Bioremediation: 4th International Conference of Chlorinated and recalcitrant Compounds, Monterey, CA, May 24-27, 2004.

Shrout J.S., P. Larese-Casanova, M. M. Scherer, and P. J.J. Alvarez (2004). Sustained RDX degradation in bioaugmented, simulated Fe(0) permeable reactive barriers. Proc. In Situ and On-Site Bioremediation: 4th International Conference of Chlorinated and recalcitrant Compounds, Monterey, CA, May 24-27, 2004.

L. Diels*, L. Bastiaens, S. OÕHannessin, J. L. Cortina, P. J. Alvarez, M. Ebert, and H. Schad (2003). Permeable Reactive Barriers: a multidisciplinary approach of a new emerging sustainable groundwater treatment technology. Proc. ConSoil2003. Ghent, Belgium, May 12-16, 2003.

Kamath, R., Schnoor,J.L. and Alvarez P.J.J. (2003). Effect of Root Extracts on the Expression of nah-lux Genes in Pseudomonas fluorescens HK44 ­Implications for PAH Biodegradation in the Rhizosphere. International Applied Phytotechnologies Conference. US EPA. Chicago, IL. March 3-5 2003.

Lovanh, N. and P.J.J. Alvarez (2003). Effect of ethanol on BTEX biodegradation activity using a bioreporter strain in continous cultures. 225th ACS National Meeting. Volume 43 (No. 1): pp 669-673. New Orleans, LA. March 23-27, 2003.

Da Silva M.L.B., Ulrich A., Edwards E., and P.J.J. Alvarez (2003). Enhanced biodegradation of BTEX-ethanol mixtures through bioaugmentation with competent methanogenic consortia.In Situ and On-Site Bioremediation: The Seventh International Symposium, Orlando, FL, June 2-5, 2003.

Kelvin B. Gregory K.B., A.B. Williams., P.J.J. Alvarez, G.F. Parkin, and M.M. Scherer(2003). RDX transformation in the presence of ferrihydrite and Geobacter metallireducensGS-15. In Situ and On-Site Bioremediation: The Seventh International Symposium, Orlando, FL, June 2-5, 2003.

Fern‡ndez-S‡nchez, J. M., Sawvel, E. J. and Alvarez. P.J.J. (2002). Effect of Fe0 surface area concentration on the efficiency of iron-based biorremediation. VII Latin American Workshop and Symposium on Anaerobic Digestion. IWA-FEMISA. Yucatan, Mexico. October 23-25, 2002.

Kamath R. and Alvarez. P.J.J.(2002). Effect of root exudates on phenantrene degradation by two Hawaiian soil isolates. Abstract. Third International Conference on remediation of Chlorinated and Recalcitrant Compounds. Battelle. Monterey, CA, May 20-23, 2002.

Alvarez P.J.J. (2001). Iron-enhanced bioremediation of RDX in aquifer columns. Partners in Environmental Technology Technical Symposium and Workshop. Strategic Environmental Research and Development Program (SERDP) and Environmental Security Technology Certification Programs (ESTCP). November 27-29, 2001. Washington, D.C.

Kane S. R., H.R. Beller, T.C Legler, and P.J.J. Alvarez (2002). A Real-time PCR Method forIn Situ Monitoring of Anaerobic, Hydrocarbon-degrading Bacteria Based on bssA (a Benzylsuccinate Synthase Gene). Abst. 102nd Gen. Meet. Am. Soc. Microbiol., Salt Lake City, Utah May 19 – 23, 2002

Alvarez P.J.J., G.M.L. Ruiz-Aguilar, H.R. Beller, J.M. Fernandez-Sanchez, N. Lovanh, C.S. Hunt, and M.B. da Silva (2001). Effect of ethanol on BTEX degradation and natural attenuation. Proc. Petroleum Hydrocarbons and Organic Chemicals in Groundwater: 2001 Conference and Exposition. NGWA, Houston, TX, November 14-16, 2001, pp.53-54.

Lovanh N., C.S. Hunt, and P.J.J. Alvarez (2001). Effect of ethanol on BTEX degradation kinetics by continuous cultures. Proc. IWA 2nd World Water Congress. Berlin, 15-19 October, 2001.

Powers S.E., P.J.J. Alvarez, and D.W. Rice (2001). Uncertainties about the groundwater Impacts associated with increased use of ethanol in gasoline. In: Subsurface Fate and Transport of Gasoline Containing Ethanol Ð Report to the California State Water Resources Control, D.W. Rice and R.T. Depue (Eds.), Lawrence. Livermore National Laboratory, Livermore, CA, UCRL-AR-145380, Ch. 1.

Alvarez P.J.J., G.M.L. Ruiz-Aguilar, J.M. Fernandez-Sanchez, D. Kim, H.R. Beller, and S.R. Kane (2001). Impact of ethanol on benzene, toluene, ethylbenzene, and xylene groundwater plumes: biodegradation kinetics. In: Subsurface Fate and Transport of Gasoline Containing Ethanol Ð Report to the California State Water Resources Control, D.W. Rice and R.T. Depue (Eds.), Lawrence Livermore National Laboratory, Livermore, CA, UCRL-AR-145380, Ch. 3.

Oh B-T and P.J.J. Alvarez (2001). Iron-based bioremediation of RDX-contaminated groundwater. First European Bioremediation Conference. Chania, Greece, July 2-5, 2001.

Oh B-T and P.J.J. Alvarez (2001). RDX degradation with bioaugmented Fe(0) filings: Implications for enhanced reactive barrier performance. In Situ and On-Site Bioremediation: The Sixth International Symposium, San Diego, CA, June 4-7, 2001.

Gandhi S., Oh B-T, R. Sawvel, J.L. Schnoor, P.J.J. Alvarez (2001). Degradation of TCE, Cr(VI), nitrate and sulfate mixtures in flow-through columns mimicking bioaugmented Fe(0) barriers. In Situ and On-Site Bioremediation: The Sixth International Symposium, San Diego, CA, June 4-7, 2001.

Da Silva M.B. G.M. Ruiz, J.M. Fernandez, H.R. Beller, and P.J.J. Alvarez (2001). Effect of ethanol versus MTBE on BTEX retardation and biodegradation under different electron acceptor conditions. In Situ and On-Site Bioremediation: The Sixth International Symposium, San Diego, CA, June 4-7, 2001. 6(1) 195-202.

Gregory K., M. Von Arb, P.J.J. Alvarez, M. Scherer, and G.F. Parkin, (2001). Biogeochemical removal of RDX using iron oxide and Geobacter metallireducens GS-15. In Situ and On-Site Bioremediation: The Sixth International Symposium, San Diego, CA, June 4-7, 2001. Battelle Press, 6(3)1-8.

Gu B, D. B. Watson, D. Phillips, J, Zhou, and P.J.J. Alvarez (2001). Microbiological characteristics in a zero-valent iron reactive barrier. In Situ and On-Site Bioremediation: The Sixth International Symposium, San Diego, CA, June 4-7, 2001.

Alvarez P.J.J. (2001). Principles and applications of BTEX remediation. Proc. Innovative Approaches to the On-Site Assessment and remediation of Contaminated Sites. NATO Advance Studies Institute. Prague, Czech Republic, May 24-June 2, 2001

Oh B-T and P.J.J. Alvarez (2001). RDX (hexahydro-1,3,5-trinitro-1,3,5-triazine) degradation using bioaugmented Fe(0). Q-258 Abst. 101st Annu. Meet. Am. Soc. Microbiol., Orlando, FA, May 20-24, 2001.

Gregory K., B-T Oh, M. Scherer, G,F. Parkin, and P.J.J. Alvarez (2000). Biogeochemical degradation of redox-sensitive compounds using iron oxide and Geobacter metallireducensGS-15. 220th ACS National Meeting. Washington, D.C. August 20-25, 2000.

Da Silva M.B. and P.J.J. Alvarez (2000). Effects of ethanol versus MTBE on BTEX natural attenuation. Proc. NGWA/API Petroleum Hydrocarbons Conference. Anaheim, CA, Nov. 16-19, 2000.

Lovanh N., Y-K Zhang, R.C. Heathcote, and P.J.J. Alvarez (2000). Guidelines to Determine Site-Specific Parameters for Modeling the Fate and Transport of Monoaromatic Hydrocarbons in Groundwater. Final Report Submitted to The Iowa Comprehensive Petroleum Underground Storage Tank Fund Board, Des Moines, IA. March, 2000.

Lovanh N., Y-K Zhang, and P.J.J. Alvarez (2000). Biodegradation Rate Coefficient Determination Software (BIRACODES). Submitted to The Iowa Comprehensive Petroleum Underground Storage Tank Fund Board, Des Moines, IA. April, 2000.

Zhang Y-K, B-M Seo, N. Lovanh, and P.J.J. Alvarez (2000). Evaluation of Computer Software Packages for RBCA Tier-3 Analysis.. Submitted to The Iowa Comprehensive Petroleum Underground Storage Tank Fund Board, Des Moines, IA. April, 2000.

Scherer, M.M., J. Ginner, P.J.J. Alvarez, and K. Johnson (2000). Contaminant remediation by iron metal: shifting kinetic regimes. Hazardous Waste Research 2000 Conference. Denver, CO. May 23-25, 2000.

Lovanh N., M. Rysz, and P.J.J. Alvarez* (2000). The Effects of ethanol on toluene degradation by four archetypes under carbon and oxygen limited conditions. Proc. 5th HSRC Research Symposium, Asilomar Conference Grounds, Pacific Grove, CA, July 9-12, 2000.

Da Silva M.B., N. Lovanh, C.S. Hunt, and P.J.J. Alvarez (2000). The Effects of ethanol on BTX natural attenuation: pure culture and aquifer column experiments. hazardous waste research 2000 Conference. Denver, CO. May 23-25, 2000.

D. W. Rice, S.E. Powers, and P.J.J. Alvarez (1999). Potential Scenarios for Ethanol-containing gasoline Released into Surface and Subsurface Waters. In: Health and Environmental Assessment of the Use of Ethanol as a Fuel Oxygenate Ð Report to the California Environmental Policy Council in Response to Executive Order D-5-99. Vol. 4, Potential Ground and Surface Water Impacts, D.W. Rice and G. Cannon (Eds.), Lawrence Livermore National Laboratory, Livermore, CA, UCRL-AR-135949 Vol. 4, Ch. 1.

Alvarez, P.J.J. and C.S. Hunt (1999). The Effect of Ethanol on BTEX Biodegradation and Natural Attenuation. In: Health and Environmental Assessment of the Use of Ethanol as a Fuel Oxygenate Ð Report to the California Environmental Policy Council in Response to Executive Order D-5-99. Vol. 4, Potential Ground and Surface Water Impacts, D.W. Rice and G. Cannon (Eds.), Lawrence Livermore National Laboratory, Livermore, CA, UCRL-AR-135949 Vol. 4, Ch. 3.

Rice, D.W., P.J.J. Alvarez, S.E. Powers, H.R. Beller, S.R. Kane, J.I. Daniels, D.W. Layton, and B. Dooher (1999). Knowledge Gaps Regarding the Ground and Surface Water Impacts of Ethanol-Containing Gasoline and Recommendations for Future Research. In: Health and Environmental Assessment of the Use of Ethanol as a Fuel Oxygenate Ð Report to the California Environmental Policy Council in Response to Executive Order D-5-99. Vol. 4, Potential Ground and Surface Water Impacts, D.W. Rice and G. Cannon (Eds.), Lawrence Livermore National Laboratory, Livermore, CA, UCRL-AR-135949 Vol. 4, Ch. 9.

G.F. Parkin, P.J. Alvarez, M.M. Scherer, J.L. Schnoor (2000). The Role of Microbes in Remediation with Fe(0) Reactive Barriers. Groundwater Currents; EPA 542-N-00-002. 35:2-3.

Alvarez P.J.J., E. Sawvel, M. Wildman, B. Eberle, K. Gregory, G.F. Parkin, and J.L. Schnoor (1999). Biogeochemical interactions in Reactive Zero-Valent Iron Barriers. Proc. 1999 Bioremediation Research Porgram Review, Nov 3-5, 1999, Bloomingdale, IL EPA/600/R-99/092, p. 14-16.

Sawvel E.J., R. Donald, and P.J.J. Alvarez (1999). Microbial-Fe(0) interactions during treatment of groundwater contaminant mixtures. Proc. 14th HSRC Conference on the Hazardous Waste Remediation, Saint Louis, MO, May 19-21, 1999.

Alvarez*, P.J.J., R.C. Heathcote, and S.E. Powers (1999). Discussion of “Caution against interpreting gasoline release dates based on BTEX ratios in groundwater”, Ground Water Monitoring and Remediation, Spring, 155-158.

Lovanh, N., Y.-K. Zhang, and P.J.J. Alvarez* (1999). Statistics and effect of first-order biodegradation rate coefficient on intrinsic remediation of groundwater contamination, Proc. 6th International Petroleum Environmental Conference, Houston, TX, October, 1999.

Ginner G., S. Threkelsen, M. Scherer, and P.J.J. Alvarez (1999). Nitrate reduction by iron metal: the rate limiting step. Proc. 14th HSRC Conference on the Hazardous Waste Remediation, Saint Louis, MO, May 19-21, 1999.

Alvarez P.J.J. Zhang Y-K, and Lovanh N. (1998). Evaluation of the Iowa Tier-2 Model Based on the Benzene Plume Dimensions. Iowa Comprehensive Petroleum Underground Storage Tank Fund Board, Des Moines, IA. December, 1998.

Alvarez P.J.J., G.F. Parkin, J.L. Schnoor, and J. Fang (1998). Biogeochemical Interactions in Zero-Valent Iron Walls. In: USEPA 1996-98 Bioremediation Research Program Review, Sept 23-24, 1998, Washington D.C. EPA/600/F-98/122, p. 32.

Parkin G.F., L.J. Weathers., P.J. Novak, and P.J.J. Alvarez (1998). Enhanced Anaerobic Bioremediation Using Elemental Iron. Proc. of the ASCE 1998 National Conference on Environmental Engineering, Chicago, IL, June 7-10, 1998. pp.128-133.

Dejoutnett T. and P.J.J. Alvarez (1998). Feasibility of Fe(0) Bioaugmentation with Hydrogenotrophic Denitrifiers for Nitrate Removal from GroundwaterÓ, Proc. 13th HSRC Conference on the Hazardous Waste Remediation, Salt Lake City, UT, May 19-21, 1998.

Wildman M. and P.J.J. Alvarez (1998). Feasibility of Bioaugmentation of Fe(0) With Anaerobic Sludge to Remove RDX From Soil and Groundwater. Proc. 13th HSRC Conference on the Hazardous Waste Remediation, Salt Lake City, UT, May 19-21, 1998.

Alvarez P.J.J. ÒDise–o de fitorremediaci—nÓ, Symposium de Biorremediaci—n de Suelos y Acu’feros, XXV Aniversario del Depto. de Biotecnolog’a y Bioingenier’a, CIESTAV-IPN. MŽxico, D.F., November 7, 1997.

Till B.A., L.J. Weathers, and P.J.J. Alvarez, ÒTreatment of nitrate contaminated waters using autotrophic denitrifiers and Fe¡Ó, Proc. WEF 70th Annual Meeting. North Chicago, IL, October 18-22, 1997.

Aitchintson, E.W., Kelley, S.L., Schnoor, J.L., and Alvarez, P.J.J., “Phytoremediation of 1,4-Dioxane”, Proc. WEF 70th Annual Meeting. North Chicago, IL, October 18-22, 1997.

GŸlensoy N. and Alvarez, P.J.J., Substrate specificity of aromatic hydrocarbon degraders.Proc. 12th HSRC Conference on the Hazardous Waste Remediation, Kansas City, KS, May 20-22, 1997.

Gottbrath R. and Alvarez, P.J.J., Toluene degradation activity and longevity of resting ppf1 cells grown under aerobic and hypoxic conditions. Proc. 12th HSRC Conference on the Hazardous Waste Remediation, Kansas City, KS, May 20-22, 1997.

Alvarez, P.J.J. “Fitoremediaci—n”, Proc. II Conferencia Latinoamericana Sobre Riesgo Ambiental, Asociaci—n Venezolana de Ingenier’a Sanitaria y Ambiental, Valencia, Venezuela, May 14-15, 1997.

Alvarez, P.J.J. “Bioremediaci—n basada en hierro cero-valente”, Proc. II Conferencia Latinoamericana Sobre Riesgo Ambiental, Asociaci—n Venezolana de Ingenier’a Sanitaria y Ambiental, Valencia, Venezuela, May 14-15, 1997.

Alvarez, P.J.J. “Bioremediaci—n de acu’feros contaminados por gasolina con etanol”, Proc. II Conferencia Latinoamericana Sobre Riesgo Ambiental, Asociaci—n Venezolana de Ingenier’a Sanitaria y Ambiental, Valencia, Venezuela, May 14-15, 1997.

Hunt, C.S, Cronkhite L.A, R., Corseuil, H.X. and Alvarez, P.J.J., “Effect of ethanol on anaerobic toluene degradation in aquifer microcosms”, 213th American Chemical Society National Meeting. San Francisco, CA, April 13-17, 1997.

Schnoor, J.L., Aitchintson, E.W., Kelley, S.L., Alvarez, P.J.J., Wakefield, S., Burken, J.G., and Just. C.L., “Phytoremediation of 1,4-dioxane by hybrid poplars “, 213th American Chemical Society National Meeting. San Francisco, CA, April 13-17, 1997.

Hunt, C.S, dos Santos Ferreira, R., Corseuil, H.X. and Alvarez*, P.J.J., ÒEffect of ethanol on aerobic BTX degradationÓ; In Situ and On-Site Bioremediation: The Fourth International Symposium, New Orleans, LA, April 28-May 1, 1997.

Till B.A., L.J. Weathers, and P.J.J. Alvarez, ÒFe0-based bioremediation of nitrate contaminated watersÓ, In Situ and On-Site Bioremediation: The Fourth International Symposium, New Orleans, LA, April 28-May 1, 1997.

Corseuil, H.X. and P.J.J. Alvarez* (1996). Natural bioremediation perspective for BTX contaminated groundwater in Brazil. Proc. IAWQ 18th Biennial International Conference. Singapore, June 23-28, 1996; (4) 9-16.

Alvarez*, P.J.J., ÒMicroorganisms in activated sludge and biofilm processesÓ, In: P.L. Bishop (ed.)., Research Developments at Water Quality International Ô96, 18th Bienneial IAWQ International Conference. Submitted to the National Science Foundation. pp. 105-117.

Alvarez*, P.J.J., Discussion of “Caution against the inappropriate use of analytical fate and transport models to estimate the age and risk of petroleum product releases”, Ground Water Monitoring and Remediation, (1996) Fall,185

Burken J., A. Dietz, J. Jordahl, W. Schnabel, P. Thompson, L. Licht, P. Alvarez, and J. Schnoor* (1996). Phytoremediation at hazardous waste sites. Proc. WEF 69th Annual Meeting. Dallas, TX, October 5-9, 1996.

Hunt C.S., N.A. Lynch, and P.J.J. Alvarez* (1996). Induction of toluene dioxygenase ofPseudomonas putida F1 by various compounds. Abst. 95th Annu. Meet. Am. Soc. Microbiol., New Orleans, LA, May 19-23, 1996.

Vermace M.E., N.A. Lynch, G.F. Parkin, and P.J.J. Alvarez* (1996). Effects of dissolved oxygen concentration on the expression and activity of toluene dioxygenase inPseudomonas putida F1. Abst. 95th Annu. Meet. Am. Soc. Microbiol., New Orleans, LA, May 19-23, 1996.

Lynch* N.A., P. Svebakken, M.E. Vermace, W. Wilke, C.S. Hunt, P.J.J Alvarez, and D.T. Gibson (1996). An immunoassay for detection and quantification of microbial gene expression in environmental samples “, Abst. 30th North-Central GSA Sectional Meeting, Research Symposium on Geomicrobiology, Ames, IA, May 2-3, 1996.

Vermace M.E., R.F. Christensen , G.F. Parkin, and P.J.J Alvarez*, ” Cyclic aerobic and denitrifying conditions to enhance BTX bioremediation”, Abst. 30th North-Central GSA Sectional Meeting, Research Symposium on Geomicrobiology, Ames, IA, May 2-3, 1996.

Till B.A., L.J. Weathers, and P.J.J. Alvarez*, ÒBiological and chemical nitrate removal using autotrophic denitrifiers and zero-valent ironÓ Proc. HSRC/WERC Joint Conference on the Environment, Albuquerque, NM, May 21-23, 1996.

Foster L., M.E. Vermace, and P.J.J. Alvarez*, ÒEffect of poplar rhizosphere on microbial populations that degrade priority pollutantsÓ Proc. HSRC/WERC Joint Conference on the Environment, Albuquerque, NM, May 21-23, 1996.

Schnabel W., A. Dietz, J. Burken, Schnoor, and P.J.J. Alvarez*, ÒTCE uptake by common garden vegetablesÓ, Proc. HSRC/WERC Joint Conference on the Environment, Albuquerque, NM, May 21-23, 1996.

Helland, B.R., Alvarez*, P.J.J., and Schnoor, J.L., Dechlorination of CCl4 with iron: carbon mass balance and effect of oxygen on dechlorination pathways. Proc. HSRC/WERC Joint Conference on the Environment, Albuquerque, NM, May 21-23, 1996.

Cronkhite, L., and Alvarez*, P.J.J., “Enhancement of BTX degradation by the addition of benzoate”, 5th Biocatalysis and Bioprocessing Conference. Iowa City, IA, May 13-14, 1996.

Foster, L., Vemace, M.E., and Alvarez*, P.J.J., “Effect of poplar rhizosphere on microbial degradation of priority pollutants”, 5th Biocatalysis and Bioprocessing Conference. Iowa City, IA, May 13-14, 1996.

Helland B.R., Alvarez*, P.J.J., and Schnoor, J.L., “Effect of dissolved oxygen on dechlorination pathways of carbon tetrachloride”, 5th Biocatalysis and Bioprocessing Conference. Iowa City, IA, May 13-14, 1996.

Schnabel W.E., A.C. Dietz, J.G Burken, J.L Schnoor, and P.J.J. Alvarez* ÒUptake of TCE by edible garden vegetables”, 5th Biocatalysis and Bioprocessing Conference. Iowa City, IA, May 13-14, 1996.

Till, B.A., Weathers, L.J., and Alvarez*, P.J.J., “Biological and chemical nitrate removal in flow through columns packed with steel wool”, 5th Biocatalysis and Bioprocessing Conference. Iowa City, IA, May 13-14, 1996.

Vermace, M.E., Lynch, N.A., Parkin, G.F., and Alvarez*, P.J.J., “Effect of dissolved oxygen concentration on the expression and activity of toluene dioxygenase inPseudomonas putida F1″, 5th Biocatalysis and Bioprocessing Conference. Iowa City, IA, May 13-14, 1996.

Alvarez* P.J.J., T.M. Vogel, M.E. Vermace, Gene F. Parkin, R.F. Christensen, K.H. Rotert, and L.A. Cronkhite (1996). BTEX biodegradation by aquifer microorganisms under aerobic and denitrifying conditions. Proc. III Simposio Internacional Sobre Control de Polluci—n de Aguas por Procesos Biol—gicos, AVISA, Valencia, Venezuela, February 6-9, 1996.

Alvarez* P.J.J., B.R. Helland, and J.L. Schnoor (1996). Reductive treatment of carbon tetrachloride with zero-valent iron. Proc. III Simposio Internacional Sobre Control de Polluci—n de Aguas por Procesos Biol—gicos, AVISA, Valencia, Venezuela, February 6-9, 1996.

Christensen R.F. and P.J.J. Alvarez* (1995). Selection of BTX degraders by stimulation of denitrification. Abst. 94th Annu. Meet. Am. Soc. Microbiol., Washington, DC, May 21-25, 1995.

Vermace M.E., G.F. Parkin, and P.J.J. Alvarez* (1995). Isolation and identification of denitrifiers that degrade alkylbenzenes. Abst. 94th Annu. Meet. Am. Soc. Microbiol., Washington, D.C., May 21-25, 1995.

Weathers L.J., G.F. Parkin*, Novak P.J., and P.J.J. Alvarez (1995). Chloroform comebabolism by a methanogenic consortium utilizing elemental iron as ultimate electron donor. Abst. 94th Annu. Meet. Am. Soc. Microbiol., Washington, D.C., May 21-25, 1995.

Alvarez* P.J.J. (1995). Fundamentos de la microbiolog’a ambiental. Proc. I Conferencia Latinoamericana Sobre Riesgo AmbientalÕ Asociaci—n Venezolana de Ingenieros Sanitarios y Ambientales, Valencia, Venezuela, May 10-12, 1995.

Alvarez* P.J.J. (1995). Contaminaci—n de acu’feros. Proc. I Conferencia Latinoamericana Sobre Riesgo Ambiental, Asociaci—n Venezolana de Ingenieros Sanitarios y Ambientales, Valencia, Venezuela, May 10-12, 1995.

Alvarez* P.J.J. (1995). Biorremediaci—n de acu’feros. Proc. I Conferencia Latinoamericana Sobre Riesgo Ambiental, Asociaci—n Venezolana de Ingenieros Sanitarios y Ambientales, Valencia, Venezuela, May 10-12, 1995.

Christensen R.F. and P.J.J. Alvarez* (1995). Denitrifying conditions provide a competitive advantage for indigenous microorganisms that degrade BTX. 4th Biocatalysis and Bioprocessing Conference. Iowa City, IA, May 15-16, 1995.

Hunt C.S., N.A. Lynch, and P.J.J. Alvarez* (1995). Enhanced degradation of trace levels of benzene. 4th Biocatalysis and Bioprocessing Conference. Iowa City, IA, May 15-16, 1995.

Rotert K.H., L.A. Cronkhite, and P.J.J. Alvarez* (1995). The use of benzoate to stimulate BTX degradation by indigenous aquifer microorganisms. 4th Biocatalysis and Bioprocessing Conference. Iowa City, IA, May 15-16, 1995.

Vermace M.E., P.J.J. Alvarez*, and G.F. Parkin (1995). o-Xylene degradation under denitrifying conditions. 4th Biocatalysis and Bioprocessing Conference. Iowa City, IA, May 15-16, 1995.

Helland R.H., P.J.J. Alvarez*, and J.L. Schnoor (1995). Oxygen control product formation in CCl4 dechlorination using zero-valent iron. 209th American Chemical Society National Meeting. Anaheim, CA, April 2-7, 1995. Preprints of papers, pp 732-734.

Weathers LJ, GF Parkin*, PJ Novak, and PJJ Alvarez (1995). Methanogens couple anaerobic Fe0 oxidation and CHCl3 reduction. 209th ACS National Mtng. Anaheim, CA, April 2-7, 1995.

Alvarez*, P.J.J. and T.M. Vogel (1994). Degradation of monoaromatic hydrocarbons and oxygenic metabolites by indigenous microorganisms under denitrifying conditions. Proc. IAWQ Conference on Biological Degradation of Organic Chemical Pollutants in Biofilm Systems. Copenhagen, Denmark, 19-21 May, 1994.

Alvarez*, P.J.J. and T.M. Vogel (1994). Degradation of BTEX and their aerobic metabolites by indigenous microorganisms under denitrifying conditions. Q-339 Abst. 93rd Annu. Meet. Am. Soc. Microbiol., Las Vegas, NV, May 23-27, 1994.

Alvarez*, P.J.J. (1994). Is fingerprinting unequivocally diagnostic of source in cases of fuel released to soil and groundwater? Iowa Groundwater Association Quarterly, 5(3):12.

Helland B.H., P.J.J. Alvarez*, and J.L. Schnoor (1994). Reductive dechlorination of carbon tetrachloride in water using elemental iron. Proc. 9th Annual Conference on Hazardous Waste Remediation. Center for Biofilm Engineering, Montana State University, Bozeman, Montana, June 8-10, 1994.

Helland R.H., P.J.J. Alvarez*, and J.L. Schnoor (1994). Sequential reductive dechlorination of carbon tetrachloride: Potential synergistic effect of microorganisms and zero-valent iron.Proc. 3rd Biocatalysis and Bioprocessing Conference. Iowa City, IA, May 9-10, 1994.

Hunt, C.S. and P.J.J. Alvarez* (1994). Kinetics of benzene degradation as a secondary substrate. Proc. 3rd Biocatalysis and Bioprocessing Conference. Iowa City, IA, May 9-10, 1994.

Rotert, K.H. and P.J.J. Alvarez* (1994). Stimulation of BTEX degradation by the addition of environmentally acceptable structural analogues. Proc. 3rd Biocatalysis and Bioprocessing Conference. Iowa City, IA, May 9-10, 1994.

Vermace M.E., L.A. Cronkhite, P.J.J. Alvarez*, and G.F. Parkin (1994). Isolation, identification, and characterization of a microorganism capable of growth on o-xylene. Proc. 3rd Biocatalysis and Bioprocessing Conference. Iowa City, IA, May 9-10, 1994.

Alvarez*, P.J.J. and T.M. Vogel (1992). The role of nitrate as adjunct electron acceptor to O2during BTX degradation by indigenous aquifer microorganisms. Gordon Research Conference on Redox Processes in Environmental Science. New Hampton, NH, June 15-18, 1992.

Alvarez, P.J.J. and T.M. Vogel* (1992). Biodegradation of aromatic and aliphatic compounds by indigenous aquifer microorganisms under denitrifying conditions. Proc. American Institute of Chemical Engineers, Summer 1992 Meeting. Minneapolis, MN, August 5-8, 1992.

Alvarez*, P.J.J. (1992). Implicaciones pol’ticas y socioecon—micas del deterioro ambiental en Nicaragua. La Prensa, December 28, 1992.

Alvarez*, P.J.J. (1992). Ph.D. Dissertation. Biodegradation of Monoaromatic Hydrocarbons by Indigenous Aquifer Microorganisms Under Aerobic and Denitrifying Conditions. The University of Michigan, Ann Arbor.

Alvarez, P.J.J. and T.M. Vogel* (1991). Substrate interactions of benzene, toluene and para-xylene during microbial degradation by pure cultures and mixed culture aquifer slurries. Q-170 Abst. 91st Annu. Meet. Am. Soc. Microbiol., Dallas, TX, May 5-9, 1991.

Alvarez, P.J.J., P. J. Anid, and T. M. Vogel* (1991). Kinetics of aerobic biodegradation of benzene and toluene in sandy aquifer material. Proc. Five-Centers On-Site Bioremediation Conference. Kellog Biological Station, Battle Creek, MI. May 19-22, 1991.