The Influence of Meteorological Conditions on the Level of Atmospheric Air Pollution in Ufa

The atmospheric air quality in Ufa from 2017 to 2020 is analyzed. The effect the meteorological factors have on the pollution level in this period is considered. The analysis is based on instrumental measurements at nine stations from Roshydromet state observation network. The daily values of the atmospheric pollution parameter are calculated. Trends in variations in the level of atmospheric pollution by different admixtures are determined. The method of wavelet transforms is used to determine the characteristic periods of oscillations in the pollution level. Based on the cross-wavelet analysis, relations are identified between the air pollution level and the basic meteorological parameters of the atmosphere. The average concentrations of sulfur dioxide, xylenes, and toluene increased in 2017–2020. The level of atmospheric pollution is high during calm weather, weak winds, and temperature inversions. The observed changes in urban atmospheric pollution make it possible to estimate how different anthropogenic factors influence the qualitative composition of atmospheric air.