Analysis Of Air Pollutant Transport In TheAthens Basin And In The Spata Area With AThree-dimensional Dispersion Model

The transport of inert air pollutants in the Athens basin and in the Spata area are studied with a suitable three-dimensional dispersion model for various meteorological conditions. Emphasis is put on the influence of the airport emissions on air quality assuming that the airport is operating either at Hellenikon or at Spata. Results show that under conditions favouring air mass penetration from the basin to the Mesogia plain, the resulting pollutant transport causes an increase in air pollution levels without, however, leading to the exceedance of air quality standards. In the opposite case, the pollutant transport cannot have a noticeable adverse influence on the Athens air quality because of both the relatively high urban air pollution levels and the fact that the penetration depth is small.