Impact of Restrictive Measures during the Covid-19 Pandemic on Aerosol Pollution of the Atmosphere of the Moscow Megalopolisстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 7 июля 2021 г.
Аннотация:The COVID-19 pandemic has led to self-isolation and business interruptions around the world.On the basis of measurements of concentrations of an indicator of aerosol emissions from fuel combustionproducts—black carbon—it is shown that the decrease in economic activity had a significant effect on the pollutionof the Moscow atmosphere. The decrease in the intensity of the traffic and the change in the operatingmode of industrial and heat-and-power enterprises of the city during the period of restrictive measures in thespring of 2020 were determined by the dynamics of the daily and weekly trend of black carbon levels. Thedecrease in the fraction of fossil fuel combustion at this time correlates with the increased contribution of biomasscombustion in the residential sector and during agricultural fires around the megalopolis. Changes inthe intensity and direction of sources of high concentrations of black carbon were observed during the recoveryof economic activity in the summer of 2020. The decrease in the concentration of black carbon and fineparticles less than 2.5 μm in size (PM2.5) in the urban atmosphere reflects a decline in economic activity andan improvement in air quality and conditions for maintaining the health of the Moscow population duringthe COVID-19 pandemic