Siberian Smoke Haze over European Territory of Russia in July 2016: Atmospheric Pollution and Radiative Effects

Semoutnikova, E. G.; Gorchakov, G. I.; Ситнов, С. А.; Kopeikin, V. M.; Karpov, A. V.; Gorchakova, I. A.; Ponomareva, T. Ya.; Исаков, А. А.; Gushchin, R. A.; Datsenko, O. I.; Kurbatov, G. A.; Kuznetsov, G. A.

doi:10.1134/s1024856018020124

Cited by 24 publications

(4 citation statements)

References 30 publications

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“…Studying the distribution of the absorbing substance over the size spectrum of atmospheric aerosol is important for the development of correct models for calculating radiation-relevant optical characteristics, primarily the aerosol single scattering albedo in the visible wavelength range. This parameter determines the role of aerosols in the atmosphere as a cooling or warming factor, causing aerosol radiation forcing in the atmosphere and climate change [36][37][38][39][40][41][42]. Information about the equivalent black carbon (EBC) size distribution is also necessary for correct estimates of the mass of absorbing substances falling to the surface at various distances from remote sources of industrial pollution and smoke from wildfires, including in the Arctic region [38,[43][44][45].…”

Section: Analysis Of the Size Distribution Of The Absorbing Substancementioning

confidence: 99%

Aerosol Characteristics in the Near-Ground Layer of the Atmosphere of the City of Tomsk in Different Types of Aerosol Weather

et al. 2019

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Considering the wide range of variability of all aerosol characteristics (especially in the near-ground layer of the atmosphere near industrial centers), when creating a realistic empirical model of optical and microphysical characteristics, the optimal dividing of the total data array according to some multifactor signs is needed. In this paper, we analyze the main states of “dry” aerosol on the basis of the results of long-term regular measurements in the near-ground layer of the atmosphere near the city of Tomsk in 2000–2017. The following parameters were considered: aerosol number concentration and size distribution function, total and angular scattering coefficients, including the small-angle range 1.2° to 20°, mass concentration and size distribution of absorbing substances (equivalent black carbon), characteristics of the aerosol hygroscopic properties, and spectral aerosol extinction of radiation on an open long path in the wavelength range 0.45 to 3.9 µm. In our comprehensive study, we first proposed and developed an original approach (classification) to study the optical and microphysical properties of atmospheric aerosol of various physicochemical origins (background, smoke, smog, anthropogenic, etc.) based on dividing the entire data array into characteristic subarrays (types of aerosol weather), which differ from each other in a different combination of scattering and absorbing properties of particles. To divide the total data array into types of aerosol weather including “Background”, “Haze-S”, “Smog”, and “Smoke haze”, the values of the scattering coefficient of the dry aerosol matter σd(λ = 0.51 μm) = 100 Mm−1 and the ratio of the mass concentration of the absorbing substance to the mass concentration of submicron aerosol P = 0.05. The results showed that most of the seasonal average values of the aerosol parameters analyzed in the paper are statistically significantly different when comparing various characteristic types of scattering and absorbing atmospheric aerosol. The results of the research indicate that the application of the developed classification of types of aerosol weather for the analyzed optical and microphysical parameters of aerosol particles is quite effective and reasonable.

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Section: Analysis Of the Size Distribution Of The Absorbing Substancementioning

confidence: 99%

Aerosol Characteristics in the Near-Ground Layer of the Atmosphere of the City of Tomsk in Different Types of Aerosol Weather

et al. 2019

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“…As wildfires in the northern regions increase, the long-range transport of wildfire plumes from central Siberia to Arctic regions can become more common, increasing the impact of carbonaceous aerosols in the Arctic on radiative forcing (Calì Quaglia et al, 2022;Yue et al, 2022). Siberian wildfire plumes may even reach densely populated regions in Europe or East Asia (Ikeda and Tanimoto, 2015;Semoutnikova et al, 2018); this is associated with a significantly increased risk of mortality as well as respiratory and cardiovascular diseases of the exposed population (Chen et al, 2021). Although northern boreal regions like Siberia are predicted to be impacted the most by increasing wildfire intensity, studies investigating organic aerosol emissions, especially from Siberia, are scarce (Flannigan et al, 2009).…”

Section: Introductionmentioning

confidence: 99%

Mass spectrometric analysis of unprecedented high levels of carbonaceous aerosol particles long-range transported from wildfires in the Siberian Arctic

Schneider,

Czech,

Popovicheva

et al. 2024

Atmos. Chem. Phys.

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Abstract. Wildfires in Siberia generate large amounts of aerosols, which may be transported over long distances and pose a threat to the sensitive ecosystem of the Arctic. Particulate matter (PM) of aged wildfire plumes originating from Yakutia in August 2021 was collected in Nadym and on Bely Island (both in northwestern Siberia). An advanced analysis of the chemical composition of aerosol particles was conducted through a multi-wavelength thermal–optical carbon analyzer (TOCA) coupled to resonance-enhanced multiphoton ionization time-of-flight mass spectrometry (REMPI-TOFMS) as well as through ultra-high-resolution Fourier-transform ion cyclotron resonance mass spectrometry (FT-ICR MS). In Nadym, concentrations of organic carbon (OC) and elemental carbon (EC) peaked at 100 and 40 µg m−3, respectively, associated with Angström absorption exponents for 405 and 808 nm (AAE405/808) between 1.5 and 3.3. The weekly average on Bely Island peaked at 8.9 µg m−3 of OC and 0.3 µg m−3 of EC and AAE405/808 close to unity. In particular, ambient aerosol in Nadym had a distinct biomass burning profile with pyrolysis products from carbohydrates, such as cellulose and hemicellulose, as well as lignin and resinoic acids. However, temporarily higher concentrations of five- and six-ring polycyclic aromatic hydrocarbons (PAHs), different from the PAH signature of biomass burning, suggest a contribution of regional gas flaring. FT-ICR MS with electrospray ionization (ESI) revealed a complex mixture of highly functionalized compounds, containing up to 20 oxygen atoms, as well as nitrogen- and sulfur-containing moieties. Concentrations of biomass burning markers on Bely Island were substantially lower than in Nadym, flanked by the appearance of unique compounds with higher oxygen content, higher molecular weight, and lower aromaticity. Back-trajectory analysis and satellite-derived aerosol optical depth suggested long-range transport of aerosol from the center of a Yakutian wildfire plume to Nadym and from the plume periphery to Bely Island. Owing to lower aerosol concentrations in the plume periphery than in its center, it is demonstrated how dilution affects the chemical plume composition during atmospheric aging.

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“…They generally have diameters between 0.001 and 100 µm. Atmospheric aerosols are mainly derived from human activities [5][6][7][8][9] (such as petrochemical fuel use, industrial exhaust emissions) and natural production [7,10]. Aerosols affect atmospheric visibility and human health [11][12][13].…”

Section: Introductionmentioning

confidence: 99%

“…High-intensity human activities also cause the release of a large amount of harmful particulate matter into the atmosphere, seriously affecting air quality and human health. Studying the relationship between AOD and urbanization is of great significance for maintaining and improving the quality of the atmospheric environment [6,[8][9][10]17,[33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

Spatial and Temporal Distribution of Aerosol Optical Depth and Its Relationship with Urbanization in Shandong Province

Xue

Lin

et al. 2019

Atmosphere

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In the process of rapid urbanization, air environment quality has become a hot issue. Aerosol optical depth (AOD) from Moderate Resolution Imaging Spectroradiometer (MODIS) can be used to monitor air pollution effectively. In this paper, the Spearman coefficient is used to analyze the correlations between AOD and urban development, construction factors, and geographical environment factors in Shandong Province. The correlation between AOD and local climatic conditions in Shandong Province is analyzed by geographic weight regression (GWR). The results show that in the time period from 2007 to 2017, the AOD first rose and then fell, reaching its highest level in 2012, which is basically consistent with the time when the national environmental protection decree was issued. In terms of quarterly and monthly changes, AOD also rose first and then fell, the highest level in summer, with the highest monthly value occurring in June. In term of the spatial distribution, the high-value area is located in the northwestern part of Shandong Province, and the low-value area is located in the eastern coastal area. In terms of social factors, the correlation between pollutant emissions and AOD is much greater the correlations between AOD and population, economy, and construction indicators. In terms of environmental factors, the relationship between digital elevation model (DEM), temperature, precipitation, and AOD is significant, but the regulation of air in coastal areas is even greater. Finally, it was found that there are no obvious differences in AOD among cities with different development levels, which indicates that urban development does not inevitably lead to air pollution. Reasonable development planning and the introduction of targeted environmental protection policies can effectively alleviate pollution-related problems in the process of urbanization.

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Siberian Smoke Haze over European Territory of Russia in July 2016: Atmospheric Pollution and Radiative Effects

Cited by 24 publications

References 30 publications

Aerosol Characteristics in the Near-Ground Layer of the Atmosphere of the City of Tomsk in Different Types of Aerosol Weather

Aerosol Characteristics in the Near-Ground Layer of the Atmosphere of the City of Tomsk in Different Types of Aerosol Weather

Mass spectrometric analysis of unprecedented high levels of carbonaceous aerosol particles long-range transported from wildfires in the Siberian Arctic

Spatial and Temporal Distribution of Aerosol Optical Depth and Its Relationship with Urbanization in Shandong Province

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