Abstract:
Based on 3D modelling tools, an extensive database was created and used for different studies of atmospheric composition. All the simulations were conducted with a sufficiently high resolution and with the help of the most modern modeling tools, models from the globally used US EPA Model-3 system. This gave the opportunity to conduct extensive studies on a fully competitive modern level of the climate of atmospheric composition in the country with special focus on urban area. A statistically significant ensemble of Air Quality indexes (AQI) was calculated, and their typical recurrence, space, and temporal variability for the territory of the Sofia city was constructed. The AQ impact on human health is evaluated in terms of AQI, which gives an integrated assessment of the impact of pollutants. All the AQI evaluations are based on air pollutants concentrations obtained from the numerical modelling.