Variability of PM2.5 surface concentrations in Moscow according to MSU meteorological observatory data
D.P. Gubanova1,2, I.B. Belikov1, N.F. Elansky1, A.I. Skorokhod1, N.E. Chubarova3
1A.M. Obukhov Institute of Atmospheric Physics Russian Academy of Sciences, Pyzhevsky per., 3, 119017, Moscow, Russia 2Karpov Institute of Physicsl Chemistry, 10, Vorontsovo pole street, Moscow, 105064 3Lomonosov Moscow State University, GSP-1, Leninskie Gory, Moscow, 119991, Russia
Keywords: аэрозоли, массовая концентрация аэрозолей РМ, малые газовые составляющие атмосферы, состав атмосферы, аэрозольная оптическая толщина, загрязняющие примеси, aerosols, РМ, trace gases, atmospheric composition, aerosol optical depth, atmospheric pollutants
Abstract
Temporal variability of PM2.5 surface concentrations in Moscow and its dependence on other atmospheric parameters, such as trace gas concentrations, aerosol optical thickness (AOT), surface air temperature, humidity, and wind speed have been considered. Data rows of PM2.5 and SO2, NH3, NOx, CO, and O3 obtained during continuous measurements in 2011-2013 have been analyzed. Daily and seasonal variations in PM2.5 and trace gas concentrations as well as correlations between them have been studied. The variability of PM2.5 concentration has been considered in relation to trace gases participating in atmospheric aerosol formation and to meteorological parameters. Data on PM2.5 surface concentrations have been compared with aerosol optical depth (АОТ500) measured at the same site.
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