In this work we investigated rapid changes in chemical composition of PM1 fraction during the celebrations of New Year 2013. The measurements were carried out at the urban background site Prague-Suchdol.
The compact Time-of-Flight Aerosol Mass Spectrometer (c-ToF-AMS,Aerodyne), was used to analyze highly-resolved samples of non-refractory aerosol components. We focused on four episodes with significantly elevated total aerosol mass concentration.
We assume that the increased concentrations are due to: smoke plume from wood burning in Episode 1, fireworks in Episode 2, arrival of another air mass in Episode 3, and an uncategorized source of poly-aromatic hydrocarbons in Episode 4.