An understanding of long-range transport of air pollutants in the atmosphere requires a knowledge of the relevant atmospheric dynamic and chemical processes active at the regional scale as well as the temporal and spatial distribution of emissions. Numerical modeling is the most efficient way to determine the atmospheric transport, photochemistry and deposition pathways. The book therefore discusses the physical and chemical processes that determine regional air pollution and presents the relevant modeling techniques to describe the different atmospheric processes that are active at that scale.

Inhalt

1. Analysis and source determination of chemical deposition in five different regions of Istanbul, Turkey.- 2. Connection between emissions and concentrations of atmospheric pollutants.- 3. Use of Richardson number methods in regional models to calculate the mixed-layer height.- 4. Analyzing on - line measurements of SO2 pollution for Tirana city.- 5. Operator splitting and global error analysis.- 6. Simple pollution transport model with parameterized vertical structure.- 7. Spatial dependence and horizontal interpolation of ozone concentrations from vertical LIDAR measurements in the Aegean Sea.- 8. Evaluation techniques for regional models.- 9. A brief survey of the air polution modeling activities, carried out in the Institute of Geophysics, Bulgarian Academy of Sciences.- 10. Probabilistic assessment of regional scale ozone pollution in the eastern United States.- 11. Parallel implementations of the EUROS model: The algorithm and some preliminary results.- 12. Meteorological data for regional model validation.- 13. Sources regions affecting chemical composition of aerosols and precipitation in the eastern Mediterranean atmosphere determined using trajectory statistics.- 14. The Estonian mesoscale air pollution model.- 15. Deposition fluxes of acidifying compounds on the territory of Belarus.- 16. Measurements of rural surface ozone at a remote island site in the NE Aegean Sea: Indications of regional / transboundary transport.- 17. Regional transport of air pollutants in Greece, as seen from the Aliartos station.- 18. Regional / local transport of atmospheric pollutants from forest fires.- 19. An application of regional pollutant transport modeling forenvironmental management.- 20. Estimation of a state of an environment by the use of the observations and mathematical models.- 21. Regional ozone in the eastern Mediterranean: How well do models perform? A comparison between published model results and observations.- 22. MM5 fine grid simulations over Athens area, Greece: Assessment of one-year operational use.- 23. Modeling of aerosol processes in the Mediterranean area.- 24. Assessment of atmospheric impacts on human beings in a regional scale.- 25. Atmospheric air pollution regional background formation at the eastern coast of the Baltic Sea.- 26. Evaluation of two mesoscale photochemical numerical systems during an ozone episode.- 27. Modern computational technologies for the estimation of atmospheric processes on regional scales.- 28. Atmospheric dispersion simulation for a nuclear accident in the Black Sea area using a Lagrangian puff model.- 29. A tool to evaluate the air quality impact of industrial plants by using MM5-CMAQ.- 30. Atmospheric aerosol chemical and physical processes.- 31. Mesoscale circulations and regional air pollution.- 32. A system for interpretation and short-range forecast of radiation background in north-west Bulgaria (RINFOR).- 33. NIMH emergency response system in case of nuclear accident.- 34. Mesoscale dynamics. What is it, can it be defined, and is it important?.- 35. Interpretation of aerosol properties to comment on their natural and anthropogenic sources.- 36. On the absolute maximal concentrations of polydispersive particles from a Gaussian plume model under unstable conditions.- 37. Parameterization of PBL from the surface wind and stability classes data.- 38.Seasonal variation of the photochemical control of ozone in the lower free troposphere based on observations from the free tropospheric experiments at Jungfraujoch in the Swiss Alps.- 39. Large scale air pollution models.- Summary of the discussion in the workgroup on Meteorological and deposition processes that determine regional air pollution.- Summary of the discussion in the workgroup on Chemistry processes in regional scale.- Summary of the discussion in the workgroup on Contemporary modelling techniques including model evaluation.- NATO Advanced Research Workshop Air pollution processes in regional scale - Final Discussion.- List of the participants.- Author index.