| Abstract [eng] |
The aim of this work is to apply methods of aerosol mass spectrometry and positive matrix factorization for identification of atmospheric aerosol sources and quantification of their contributions to the total NR-PM1 aerosol budget. In the experimental part of this work, the concentration of non-refractory organic aerosol were measured in rural background site, Rūgšteliškis, Lithuania (2016, June 1st – August 31st. Sources of organic aerosol were apportioned by performing positive matrix factorization analysis of measured data. Four dominant aerosol sources were identified: 1) Low-volatility oxygenated aerosol; 2) Cooking organic aerosol; 3) Biomass burning organic aerosol; 4) Semi-volatile oxygenated organic aerosol. It was determined that biogenic aerosol contributed around 34,6 % to total organic aerosol mass and it’s formation was highly influenced by VOC oxidation products dervived from plant-emmited monoterpene compounds. |
