ON THE BEHAVIOR OF AIR-POLLUTANTS RELEASED FROM ELEVATED STACKS IN THE VICINITY OF ATHENS, GREECE

The main features that characterize the Athens Metropolitan Area (AMA) are its geographical position in the Attic Peninsula, the complicated topography and the neighbouring industrial zone, located to the west and separated from the AMA by a hilly area. The transport of air pollu tants from this zone to Athens has been the subject of a number of the oretical and experimental studies. In this paper, using the meteorolog ical and dispersion modelling system EZM, the vertical distribution of air pollutants, released from a number of stacks of various types and characteristics, and transported over Athens, was simulated and discu ssed. It was found that the vertical distribution mainly depends on th e physical height of the stacks.