Source regions of ammonium nitrate, ammonium sulfate, and natural silicates in the surface aerosols of Moscow oblast

Shukurov, K. A.; Shukurova, L. M.

doi:10.1134/s0001433817030136

Cited by 19 publications

(8 citation statements)

References 19 publications

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“…As was established by us earlier [7] from the data of measurements in 2004-2017 at the Zvenigorod Scientific Station (ZSS, 36.8° E, 55.7° N) of A.M. Obukhov Institute of Atmospheric Physics, the presence of silicates in samples of surface aerosol with particle sizes of 1-2 μm in the Moscow region is associated with the air mass transport from northwestern Kazakhstan and Aral Region. In Moscow (37.2° E, 55.7° N), the AERONET [8] site has been operating since 2001 [9], so it is interesting to investigate the effect of air transport from northwest Kazakhstan and the Aral Region to the aerosol content in the atmospheric column over the Moscow region.…”

Section: Introductionmentioning

confidence: 74%

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Aral's potential sources of dust for Moscow region

Shukurov

Shukurova

2019

E3S Web Conf.

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Array of 7-day backward trajectories of air particles for Moscow were simulated for days of measurement of volume concentrations of aerosols with particle sizes of 0.1-1.0, 1.0-2.5 and 2.5-5.0 μm at the AERONET site in Moscow in 2001-2018. The CWT (concentration weighted trajectory) method, modified for the atmosphere column, was used to determine the potential sources of aerosols of these three fractions for Moscow region. Potential sources of extreme concentrations of these aerosols in the Moscow atmosphere and the atmospheric circulation pattern favored of their transport to Moscow have been identified.

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Section: Introductionmentioning

confidence: 74%

“…Fraction A2 is similar in particle size to surface aerosol (1-2 μm) from [7]. Since the silicates in the composition of the aerosols from [7] came from the Aral Region [7], it can be assumed that the aerosols of fraction A2 (and possibly A3), coming from the Aral Region, contains many silicates too. As can be seen from Fig.…”

Section: Resultsmentioning

confidence: 99%

Aral's potential sources of dust for Moscow region

Shukurov

Shukurova

2019

E3S Web Conf.

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“…Factor 2 was marked by high factor loadings of sulfates, potassium (> 0.6) and ammonium ions (> 0.9). Since ammonium sulfate as a tracer of long-range transport was isolated in the second group of sources 11 , an assumption was made that the composition of atmospheric fallout on the northeastern coast of Baikal was affected by both local sources (small boilers and wood-burning stoves) and remote thermal power plants. For the first block (Figure 1 a), factor 3 could be also distinguished by the significance of contributions.…”

Section: Resultsmentioning

confidence: 99%

Determination of the groups of sources affecting the chemical composition of atmospheric fallout on the northeastern coast of Lake Baikal

Molozhnikova,

Shikhovtsev,

Netsvetaeva

et al. 2023

29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics

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The results of studies of the chemical composition of the snow cover on the northeastern coast of Lake Baikal, the Republic of Buryatia, are presented. Snow samples were taken along the Ulan-Ude – Kurumkan route, in the delta region of the Barguzin River, from the ice of Barguzin Bay and northern Baikal. Groups of sources affecting the composition of atmospheric fallout in the background regions of the Baikal region were determined using the statistical methods of data processing. Based on the calculation data for the dispersion of anthropogenic impurities from large source cities during the period of stable snow cover (November 2021 – February 2022), the percentage of adverse weather conditions, in which emissions could reach the northeastern coast, was obtained. The features of the spatial distribution of marker substances in the background regions of the Baikal region were studied, and the accumulation of chemicals in the snow cover was visualized on maps.

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“…By December 15, the trajectories of air mass transport to Moscow slightly shifted, and aerosols were transported from Caspian Depression and from more eastern territories of the Ryn-Peski Desert. On the other hand, the probability of air transport from those areas to the Moscow region in the winter season is estimated to be, on the whole, within 5% [ 44 ]. Thus, we recorded quite a Moscow-atypical event of a wintertime supply of arid aerosol from the southeastern regions of European Russia and western Kazakhstan.…”

Section: Resultsmentioning

confidence: 99%

Effect of Meteorological Conditions and Long-Range Air Mass Transport on Surface Aerosol Composition in Winter Moscow

et al. 2022

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We discuss the results from the complex experiment aimed at studying the composition and time variations in urban aerosol in the surface air at the center of Moscow based on daily data on PM 10 and PM 2.5 concentrations. In addition to these continuous observations every season (for 35–40 days), the total aerosol mass concentration (by gravimetric method) and 65 chemical elements in aerosol composition were measured daily. Winters 2019/2020 and 2020/2021 are considered. The aerosol composition is juxtaposed to the meteorological parameters in the surface atmosphere in Moscow, the direction of long-range air mass transport toward the Moscow region, and the distribution of dust in air over the European Russia (using the MERRA-2 reanalysis data). The detailed analysis of the aerosol elemental composition in Moscow made it possible to identify the elements of global/local spread, as well as of natural/anthropogenic genesis. Concentrations of all aerosol constituents in Moscow during winter did not exceed the corresponding daily average MPC values for the air of residential territories. It is shown that the accumulation of PM 10 and PM 2.5 in urban air was favored by calm weather conditions. The maximal levels of aerosol pollution were observed in December 2020 during southeasterly winds, when long-range atmospheric transport of admixtures to Moscow occurred from sources located in the southern regions of European Russia, the Caspian Depression, and western Kazakhstan.

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Source regions of ammonium nitrate, ammonium sulfate, and natural silicates in the surface aerosols of Moscow oblast

Cited by 19 publications

References 19 publications

Aral's potential sources of dust for Moscow region

Aral's potential sources of dust for Moscow region

Determination of the groups of sources affecting the chemical composition of atmospheric fallout on the northeastern coast of Lake Baikal

Effect of Meteorological Conditions and Long-Range Air Mass Transport on Surface Aerosol Composition in Winter Moscow

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