| Abstract [eng] |
Two factors that determine air pollution were analyzed in the thesis: fireworks, as an episodic and intense source of air pollution which is most often observed during various events, and long-range air mass transport, as a continuous atmospheric process which determines the movement of air pollutants between regions around the globe. The highest mass concentrations of air pollutants, such as black carbon, organic aerosols, sulphates, chlorides, nitrates, ammonium and fine aerosol particles, which increased from several to several dozen times, were measured on New Year's Eve. The highest mass concentrations peaked immediately after midnight on New Year's Eve may have been caused by fireworks. The contribution of long-range air mass transport to the mass concentration of aerosol particle components of different origins and the ratio of stable carbon isotopes 13C ir 12C in three different environments – urban background, rural and coastal – of the Baltic region was also assessed. New data on the contribution of New Year's fireworks and long-range air mass transport to the concentration and chemical composition of aerosol particles and the ratio of stable carbon isotopes will allow to improve the modeling algorithms. These improvements will be useful for developing and implementing advanced machine learning models aimed at more accurately predicting aerosol particle dynamics and source contributions in various environments. |
