Presentations (2001 & earlier)

Note: This listing begins with the most recent work. Presentations are provided with most abstracts; if you are interested in material that you don't see linked here, please contact Linda Everett with your request. Presentations available through this page are in Adobe Acrobat format; get the free Acrobat Reader here.

AIChE 2001 Annual Meeting: A Technological Gold Rush - Reno, NE, November 4-9, 2001

• Coping with uncertainty in the description of complex kinetic mechanisms (S. Balakrishnan, M. Ierapetritou, P.G. Georgopoulos)
  abstract

ISEA 2001 Conference - Exposure Analysis: An Integral Part of Disease Prevention - Charleston, SC, November 4-8, 2001

Exposure Medium - Air

• Assessing regional and local exposures based upon the 8-hour ozone standard (80 ppb) (G. Foley, P. Lioy, P.G. Georgopoulos)
  abstract | presentation slides

Residential Exposures

• Comparison of field measurements from a children's pesticide study against predictions from a physically based probabilistic model for estimating children's residential exposure and dose to chlorpyrifos (P. Hore, V. Zartarian, J. Xue, H. Ozkaynak, D. Barr, L. Needham, N.C.G. Freeman, A. Roy, P.J. Lioy)
  abstract | presentation slides

Source to Dose Modeling (HEADSUP)

• Assessing multimedia/multipathway exposures in the MENTOR framework. Preliminary case study: Arsenic (P.G. Georgopoulos, S.W. Wang, V.M. Vyas, E. Vowinkel, J. Xue, H. Ozkaynak)
  abstract | presentation slides will be available soon
• Systematic reduction of mechanistic models for efficient use in population exposure assessments (S.W. Wang, M. Ouyang, P.G. Georgopoulos)
  abstract | presentation slides
• Source-to-dose analysis of population exposures to PM. Case study: City of Philadelphia (V.M. Vyas, Q. Sun, A. Chandrasekar, S.W. Wang, P. Shade, P.G. Georgopoulos, J. Burke, J. Xue, H. Ozkaynak)
  abstract | presentation slides
• Indoor dynamics of chemically reactive/secondary aerosols: New data, case studies, and implications for human exposure (P.J. Lioy, Q. Sun, T. Fan, P.G. Georgopoulos)
  abstract | presentation slides (overview of modeling framework that incorporates the indoor modules)
• A Bayesian approach for reducing uncertainty in physiologically based pharmacokinetic models (A. Roy, Y.-C. Chien, C.P. Weisel, M. Ouyang, P.G. Georgopoulos)
  abstract | presentation slides

Exposure Assessment in Large-scale Epidemiological Studies

• Comparative assessment of regional population exposures to ozone and PM during a summer episode using alternative Photochemical Air Quality Simulation Models (PAQSiM) (Q. Sun, A. Chandrasekar, P.G. Georgopoulos)
  abstract

Exposure Research at DOE Sites - Savannah River (CRESP)

• How the regulatory process can result in inappropriate assessment of exposure at DOE sites and how strong science and relevant data might influence that process (C.W. Powers, D.S. Kosson, B.R. Friedlander)
  abstract
• Comparison of Alternative Filtering Algorithms for Estimating Background Groundwater Levels at Savannah River Site, SC (V.M. Vyas, A. Roy, M. Ouyang, P.G. Georgopoulos, W. Strawderman, D.S. Kosson)
  abstract | presentation slides
• Development of an integrated foodweb model for mercury for exposure assessment (J.G. Hunter, Y.C. Yang, A. Roy, P.G. Georgopoulos, J. Burger, K. Cooper)
  abstract | presentation slides
• The modification of bioaccessibility methods for radionuclide measurement and human exposure/dose modeling for relevant (non-occupational) Savannah River Site exposure scenarios (P.J. Lioy, C. Schopfer, M.A. Gallo)
  abstract
• A modeling system for supporting assessments of exposure to contaminants released from forest fires in the vicinity of hazardous and nuclear waste sites (P.G. Georgopoulos, A.Chandrasekar, C. Efstafthiou, K. Gurer)
  abstract | related technical report

US EPA's Human Exposure And Dose Simulation University Partnership — (HEADSUP) Symposium, Research Triangle Park, NC, August 2001

• Overview of Collaborative Accomplishments and Research Plans at EOHSI (P.G. Georgopoulos, P.J. Lioy)
  presentation slides
• Source-to-Dose Analysis of Population Exposures to Particulate Matter
  Case Study: Philadelphia Region (P.G. Georgopoulos, S. Bandi, A.Chandrasekar, A. Roy, P. Shade, Q. Sun, H.C. Tan, V.M. Vyas, S.W. Wang, H. Ozkaynak, J. Burke, R. Vedantham)
  presentation slides
• A Bayesian Approach for Reducing Uncertainty in Physiologically Based Pharmacokinetic Models (A. Roy, P.G. Georgopoulos)
  presentation slides

13th Annual Canadian Conference on Computational Geometry - University of Waterloo, Ontario, Canada, August 13-15, 2001

• On algorithms for simplicial depth (A.Y. Cheng, M. Ouyang)
  abstract

The 3rd International Conference on Large Scale Scientific Computations - Sozopol, Bulgaria, June 5-10, 2001

• Computationally efficient atmospheric chemical kinetic modeling by means of High Dimensional Model Representation (HDMR) (S.W. Wang, P.G. Georgopoulos, G. Li, H. Rabitz)
  abstract | presentation slides

MENTOR-OPERAS - an overview of research methods and tools that are being developed to establish physically and chemically consistent source-to-source dose relationships for fine airborne particulate matter

• Overview
• Ozone & Particle Exposure and Risk Analysis Systems (OPERAS)
• Multiscale (Regional to Microenvironmental) Photochemical and Aerosol Modeling in the MENTOR Framework
• Exposure Assessment Modeling in the MENTOR Framework
• Aerosol Inhalation Dosimetry Modeling in the MENTOR Framework
• Diagnostic and Probabilistic Tools for Model Evaluation and Sensitivity, Uncertainty, and Variability Analysis in the MENTOR Framework

7th International Conference on Atmospheric Sciences and Applications to Air quality (ASAAQ) - Taipei, Taiwan, Oct. 31-Nov. 2, 2000

• Computationally efficient modeling of atmospheric chemistry via Fully Equivalent Operational Models (FEOMs) (S.W. Wang, P.G. Georgopoulos, G. Li, H. Rabitz)
  abstract

ISEA 2000 Conference - Exposure Analysis in the 21st Century: Integrating Science, Policy and Quality of Life - Montery, CA, Oct. 24-27, 2000

• Data and models for characterizing aerosol exposure and dose: Advancements, needs and new directions (P.J. Lioy, P.G. Georgopoulos)
  abstract | presentation slides
• MENTOR-based OPERAS (particle exposure and risk analysis systems): An overview (P.G. Georgopoulos, P.J. Lioy)
  abstract | presentation slides
• Advancements in modeling the regional patterns and dynamics of ambient aerosols and associated potential population exposures ( V.M. Vyas, Q. Sun, P.G. Georgopoulos)
  abstract | presentation slides
• Problems and progress in linking outdoor and indoor physics and chemistry of airborne particulate matter (Q. Sun, S. Isukapalli, P.G. Georgopoulos)
  abstract | presentation slides
• Advancements in aerosol dosimetry modeling (D. Broday, P. Kevrekidis, P.G. Georgopoulos)
  abstract | presentation slides
• Application of the Stochastic Response Surface Method (SRSM) to analyze uncertainty and variability in exposure models (A. Roy, S.S. Isukapalli, P.G. Georgopoulos)
  abstract

Workshop on Exposure Assessment for Disinfection By-Products in Epidemiologic Studies. Ottawa, Ontario, Canada, May 2000

• Simultaneous sensitivity and uncertainty analysis for a dynamic mmodel of exposure to disinfection by-products (A. Roy, S.S. Isukapalli, and P.G. Georgopoulos)
  presentation slides

International Copper Association: Environment Program Committee Mid-Year Symposium. Montebello, Quebec, Canada, May 1-3, 2000

• Development of an environmental/exposure information system for copper (EXIS-COPPER) (P.G. Georgopoulos, P.J. Lioy)
  presentation slides
• PM2000: Particulate Matter and Health - The Scientific Basis for Regulatory Decision Making: an A&WMA International Specialty Conference, Charleston, SC, January 25-28, 2000
• Modeling of outdoor/indoor relationships of gas phase pollutants and particulate matter (S.S. Isukapalli, P.G. Georgopoulos)
  abstract | extended abstract
• Regional modeling of atmospheric aerosols for exposure analysis: An application to the eastern United States (Q. Sun, V. Purushothaman, P.G. Georgopoulos)
  abstract | extended abstract
• Exposure assessment for respirable hygroscopic particulate matter (D.M. Broday, P.G. Georgopoulos)
  abstract
• Ambient PM concentration estimation and population exposure assessment over the eastern United States (V.M. Vyas, V. Purushothaman, P.G. Georgopoulos)
  abstract | extended abstract
• Modeling deposition in a single bifurcation of the respiratory tract (P.G. Kevrekidis, P.G. Georgopoulos)
  abstract | extended abstract

Overview of Projects in CRESP I - Exposure Assessment Task Group

The following slide presentations are best viewed at a minimum of 800 x 600 screen resolution. Most are also available in Adobe Acrobat (pdf) printable format.

• Research to Support Decisions Involving Exposure to Contaminents from DOE Sites: slides
• Integration of Geographic Information Systems and Relational Database Tools for Environmental Data Access, Visualization, and Analysis: slides | pdf
• Improvements in Computational Efficiency of Uncertainty Analysis: Coupling of the Stochastic Response Surface Method with Sensitivity Analysis Methods: slides | pdf
• GRIDLIB: A GIS-Based Tool for Linking Macroenvironmental to Microenvironemental Models: slides | pdf
• Data and Model Assimilation using a Bayesian Methodology: Markov Chain Monte Carlo Simulation: slides | pdf
• Estimation of Bioavailability using Deconvolution: slides | pdf
• Defining Background Groundwater Quality for the Savannah River Site: slides
• Background Soil Quality and Relationships between Surface and Subsurface Soil Samples from the Savannah River Site: slides
• A New Mechanistic Model for the Resuspension of Particulate Matter: slides
• Particulate Matter Dispersion Modeling at the Local Scale: Comparison of the Fugitive Dust Model with a Lagrangian Fluid Particle Model: slides | pdf
• Respiratory Tract Dosimetry Modeling for Inhaled Particulate Matter: Comparison of the EDMAS-AID and ICRP66 Models: slides | pdf
• Mesoscale Atmospheric Transport and Dispersion Modeling: slides | pdf
• Modeling the Impact of Forest Fires on the Emission and Atmospheric Transport of Contaminants: slides | pdf
• Oral Bioavailability of Metals from Soil: slides | pdf
• Modification of an Integrated Food Web Model Coupled to Macro- and Microenvironemental Transport and Fate Models: Application to Pond B, Savannah River Site: slides | pdf
• Evaluation of Binary Chemical Mixtures on Early Life Stages of Freshwater Fish: slides
• Evaluation of Fit for One-, Two-, and Three-Compartment Models to Uptake and Elimination Data for Two Persistent Chlorinated Xenobiotics: 2,3,7,8-Tetrachlorodibenzo-p-dioxin (TCDD) and 3,3',4,4',5-Pentachlorobiphenyl (PCB 126): slides

Other Presentations: 2008-2009 | 2007 | 2006 | 2005 | 2004 | 2003 | 2002 | 2001 & earlier