1. Preface and Course Introduction.- 2. Emission Sources and Quantities.- 3. Atmospheric Chemistry of Sulphur Dioxide and Nitrogen Oxides.- 4. Dispersion and Transport of Atmospheric Pollutants.- 5. Control of Air Pollution - The European Community Approach.- 6. Desulphurization of Flue Gases on the Basis of Lime or Limestone Scrubbing.- 7. The Wellman Lord Process.- 8. ISPRA MARK 13A Desulphurization Process.- 9. BF / UHDE / MITSUI-Active Coke Process for Simultaneous SO2- and NOx-Removal.- 10. Walther Process.- 11. EBDS-Process.- 12. Primary Measures for NOx Reduction.- 13. High and Low Dust SCR Processes.- 14. Costs of Desulphurization and Denoxing.- 15. Situation in the United States and Japan.