Abstract
The results of continuous observations of mass concentration of black carbon and aerosols PM10, PM2.5 in the near-surface layer of the atmosphere in the center of Moscow metropolis in 2022 are considered. The interpretation of the results was carried out applying the meteorological data, backward trajectories of air mass transport to Moscow and MERRA-2 reanalysis data on the spatial distribution of dust and black carbon in near-surface air of the center of the European part of Russia. The days (less than 9%) of an extreme increase in black carbon and PM10 concentrations due to atmospheric transport of fire aerosols or dust to Moscow from other regions are highlighted. The variability of a typical aerosol (outside of such episodes) in the megalopolis has been studied at different time scales – from daily to monthly and seasonal ones. The main contribution of dust and carbon-containing aerosols to megalopolis atmosphere is made by local anthropogenic sources (transport, thermal energy, industrial enterprises, construction facilities). A high correlation has been established between the concentrations of black carbon and PM2.5 particles in daily and seasonal changes. The data on air pollution with black carbon and aerosols PM2.5 and PM10 in large cities of the world show that the Moscow metropolis does not exceed the major cities of Europe and North America in terms of aerosol pollution.
Published Version
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