Keywords: air pollution, environmental pollution, modelling, atmospheric dispersion models, synoptic classification scheme, environmental impact assessment, Athens, Greece
Estimation of the contribution to air-quality degradation in Athens from major elevated sources
The dispersion of air pollutants released from the major elevated sources in the Attica Peninsula has been studied extensively. An attempt was made to estimate average concentrations for some non-reactive air pollutants. These estimates were made with a two-way interactive nesting, prognostic model, RAMS, a Lagrangian particle dispersion model, LPDM, and a synoptic classification scheme developed for this purpose. Simulations were made with this complicated modelling system because of the significant variation of the physiographic characteristics in the region. Such variation was found to be responsible for the development of thermal circulations of various scales and consequently the complicated dispersion characteristics. The conclusions derived from this approach should be considered as very important for the region in general. More specifically, it was found to be very helpful for planning the expansion of the existing power production units and the development of a monitoring network.