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Visn. Nac. Akad. Nauk Ukr. 2020.(5): 80-89
https://doi.org/10.15407/visn2020.05.080

M.V. Savenets, V.I. Osadchyi, A.V. Oreshchenko
Ukrainian Hydrometeorological Institute of State Emergency Service of Ukraine and National Academy of Sciences of Ukraine, Kyiv

FOREST FIRES IN APRIL 2020 AND THE RESULTING CHANGES OF AIR QUALITY IN UKRAINE

The study discusses atmospheric air quality changes in Ukraine due to forest fires influence in the north of Ukraine in April 2020. Using Sentinel-5P satellite, data of carbon monoxide, nitrogen dioxide and aerosol index, in combination with HYSPLIT model, the study analyzes spatio-temporal variability of burning products and its distribution trajectories. There were two main wildfires episodes for the period of 4–21 April, 2020, which affected air quality in Ukraine. Depending on the wind direction, the most affected territories were located at less than 50 km from active fires. Elevated carbon monoxide content was detected at the distance up to 300 km from the main emission sources. Atmospheric air quality deterioration was observed also during dust storm between two main fires. The study presents an analysis of wind speed and wind direction along the air masses movement, which caused the dust storm, and water content changes along main trajectories.
Keywords: forest fires, carbon monoxide, nitrogen dioxide, aerosol index, atmospheric air quality, trajectory.

Language of article: ukrainian

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