INTERNATIONAL AIR QUALITY ADVISORY BOARD
1997-1999 PRIORITIES REPORT

TABLE OF CONTENTS


INDEX OF TABLES AND FIGURES

4.1 INTRODUCTION
 
4.2 METHODOLOGICAL OPTIONS FOR ANALYSIS OF THE ATMOSPHERIC DEPOSITION PATHWAY
 
4.3 A PROJECT USING THE COMPREHENSIVE MODELING APPROACH
4.3.1 Availability of Emissions Inventories
4.3.2 Atmospheric Fate and Transport Modeling
4.3.3 Evaluation of Modeling Results
4.3.4 Uncertainties
4.3.5 Summary of Methodology
 
4.4 DIOXIN: APPLICATION OF THE COMPREHENSIVE MODELING TECHNIQUE
4.4.1 Case Study Examples of the Calculations
4.4.2 Emissions Inventories for Dioxin
4.4.3 Generalized Fate and Transport Modeling of Dioxin
4.4.4 Evaluation of the Dioxin Modeling Results
4.4.5 Source-Receptor Relationships for the Atmospheric Deposition of Dioxin to the Great Lakes Arising from Emissions in the U.S. and Canada
 
4.5 FINDINGS AND CONCLUSIONS
 
4.6 REFERENCES AND BIBLIOGRAPHY


Tables

  1. Persistent Toxic Substances (Level I and Level II) Identified in the Great Lakes Binational Toxics Strategy
  2. Previous Estimates of the Percent of Great Lakes Loadings Attributable to the Atmospheric Deposition Pathway
  3. Methods for Analysis of the Atmospheric Deposition Pathway
  4. Summary of Inventories Currently Identified for Use in Project
  5. Estimated Dioxin Air Emissions from the Hamilton and St. Louis Metropolitan Areas
  6. Model-Estimated Dioxin Transfer Coefficients from Hamilton and St. Louis to the Great Lakes
  7. Atmospheric Deposition of Dioxin to the Great Lakes Arising from Air Emissions from the Hamilton and St. Louis Metropolitan Regions
  8. Contribution of 1995/1996 Atmospheric Deposition of Dioxin to the Great Lakes from Great Lakes States and Provinces and from the Rest of the U.S. and Canada

Figures

  1. Lagrangian Puff Air Transport and Dispersion Model
  2. Flow Chart of HYSPLIT Program
  3. Illustrative Case Study Examples of Dioxin Modeling Results
  4. Total Dioxin Emissions for 1995/1996
  5. Total Dioxin Emissions for 1995/1996 (Percent of total US/Canadian emissions from each State and Province)
  6. Total Dioxin Emissions for 1995/1996 -- Municipal Solid Waste Incineration
  7. Total Dioxin Emissions for 1995/1996 -- Medical Waste Incineration
  8. Total Dioxin Emissions for 1995/1996 -- Cement Kilns (Burning Hazardous Waste and Alternative Fuels
  9. Fraction of 1996 Dioxin Emissions Deposited in Lake Superior (grams TEQ deposited per year/grams TEQ emitted per year)
  10. Fraction of 1996 Dioxin Emissions Deposited in Lake Ontario (grams TEQ deposited per year/grams TEQ emitted per year)
  11. Mid-Range Estimate of the Contribution to 1996 Atmospheric Deposition of Dioxin to Lake Superior (µgrams TEQ/km2-year)
  12. Mid-Range Estimate of the Contribution to 1996 Atmospheric Deposition of Dioxin to Lake Superior (percent contributed per year from each State and Province)
  13. Mid-Range Estimate of the Contribution to 1996 Atmospheric Deposition of Dioxin to Lake Ontario (µgrams TEQ/km2-year)
  14. Mid-Range Estimate of the Contribution to 1996 Atmospheric Deposition of Dioxin to Lake Ontario (percent contributed per year from each State and Province)
  15. Percent of Total Emissions or Total Deposition of Dioxin Arising from Within a Given Distance Range from a Given Lake
  16. Percent of Total Emissions or Deposition of Dioxin Arising from States and Provinces in the Great Lakes Basin
  17. Contribution of Different Source Sectors to Atmospheric Deposition of Dioxin to the Great Lakes