Particulate Matter Characteristics and Atmospheric Boundary Layer Height over Sofia
Particulate Matter Characteristics and Atmospheric Boundary Layer Height over Sofia

Author(s): Plamen Savov, Nikolay Kolev, Ekaterina Batchvarova, Hristina Kirova, Maria Kolarova
Subject(s): Economy, National Economy, Supranational / Global Economy, Business Economy / Management, Energy and Environmental Studies
Published by: Национално издателство за образование и наука „Аз-буки“
Keywords: air quality; aerosol concentration; atmospheric boundary layer (ABL); particle number concentrations; WRF-(GDAS) model; HYSPLIT; BSC-DREAM
Summary/Abstract: The paper presents results from aerosol experimental campaigns performed in the urban environment of Sofia. Laser Particle Counter (PLC) data of 2 summer days (June, 7 and 8) and 4 winter days (December, 18, 19, 20, 21) of 2019 are discussed. Aerosol particle concentrations (number/l and mass µg/m3) in channels 0-2.5 µm and 2.5-10 µm are measured at the open green area near Pliska (at 30 m distance from boulevard Tsarigradsko shose). The combined effect of the daily development of atmospheric boundary layer height, meteorological parameters, and hourly variations in the concentrations of the aerosol fractions is discussed. WRF-GDAS and HYSPLIT models are used for determination of the atmospheric boundary layer height and to follow the transport of air masses. BSC-DREAM dust model is used as an additional source of information to assess the long-range intrusion of dust.

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