Variability of the Chemical Composition of the Atmospheric Aerosol in the Coastal Zone of the Southern Basin of Lake Baikal (East Siberia, Russia)

The role of the atmosphere in formation chemical composition and quality water Lake Baikal its tributaries has been increasing recent years. In this regard, studies constituents have an important practical application. 2020 2021, we studied atmospheric aerosol, one indicators air pollution, coastal zone southern basin compared to data from previous were carried out summer on southwestern (Bolshiye Koty) southeastern coast (Boyarsky). absence smoke aerosol southwest coast, concentrations NH4+, NO3− SO42− ions prevailed. mean total concentration at Bolshiye Koty research station was 2.08 ± 1.26 μg/m3. appearance smog contributed growth ionic 6.4 μg/m3 17.6 2021. On southeast minimum amount 3.3 Сa2+, Na+, K+, Cl−, prevailed aerosol. Under influence smog, increased 34.1 18.6 periods intense smoke, NH4+ became dominant aerosols both stations. contribution increased. Although effect natural factors is periodic, they contribute significantly change