Spatial distribution and sources of potentially toxic elements in road dust and its PM10 fraction of Moscow megacity

Власов, Д.В.; Кошелева, Н. Е.; Касимов, Н.С.

doi:10.1016/j.scitotenv.2020.143267

Cited by 81 publications

(32 citation statements)

References 126 publications

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“…The EF of Sb was higher than those reported in high-traffic cities such as Moscow, Russia (EF = 44) [19] and those registered in some roads in Barranquilla (EF close to 100) [25], but it was similar, and even lower, than those observed in high traffic roads in Viana do Castelo, Portugal (100 < EF <1000) [13]. Ramírez et al [24] reported a Sb enrichment factor close to 140 for commercial-use areas in Bogotá, which was lower than those found in this study.…”

Section: Source Exploration By Efscontrasting

confidence: 67%

“…Trace elements, such as Cu, Pb, Cr, Ni, V, and Sb, comprised 96.0% of the mass attributed to this component in Bogotá (Figure 9). These metals are commonly associated with vehicle exhaust emissions, especially the use of antioxidants, additives, and lubricants (Cu and Pb), mechanical abrasion (Cu), and tire/brake wear (Cu, Pb, Ni, V, and Sb) [10,17,19]. In the case of Manizales, the contents of Cu and Pb were lower, but there was a significant mass of Mo (11%) in comparison to Bogotá (Figure 9).…”

Section: Chemical Profilementioning

confidence: 99%

“…Furthermore, they found that crustal and anthropogenic elements, associated with tire and brake wear, dominated the inorganic fraction. Vlasov et al [19] analyzed potentially toxic elements (PTEs) in road dust in Moscow, finding that the main pollutants of the PM 10 fraction included Sb, Zn, W, Sn, Bi, Cd, Cu, Pb, and Mo. They concluded that particles were most contaminated in the central part of the city due to the large number of cars and traffic congestions.…”

Section: Introductionmentioning

confidence: 99%

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Spatial Distribution and Chemical Composition of Road Dust in Two High-Altitude Latin American Cities

et al. 2021

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Road dust (RD) resuspension is one of the main sources of particulate matter in cities with adverse impacts on air quality, health, and climate. Studies on the variability of the deposited PM10 fraction of RD (RD10) have been limited in Latin America, whereby our understanding of the central factors that control this pollutant remains incomplete. In this study, forty-one RD10 samples were collected in two Andean cities (Bogotá and Manizales) and analyzed for ions, minerals, and trace elements. RD10 levels varied between 1.8–45.7 mg/m2, with an average of 11.8 mg/m2, in Bogotá and between 0.8–26.7 mg/m2, with an average of 5.7 mg/m2, in Manizales. Minerals were the most abundant species in both cities, with a fraction significantly larger in Manizales (38%) than Bogotá (9%). The difference could be explained mainly by the complex topography and the composition of soil derived from volcanic ash in Manizales. The volcanic activity was also associated with SO4⁻2 and Clˉ. Enrichment factors and principal component analysis were conducted to explore potential factors associated to sources of RD10. Elements such as Cu, Pb, Cr, Ni, V, Sb, and Mo were mainly associated with exhaust and non-exhaust traffic emissions.

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Section: Source Exploration By Efscontrasting

confidence: 67%

Section: Chemical Profilementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Spatial Distribution and Chemical Composition of Road Dust in Two High-Altitude Latin American Cities

et al. 2021

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“…The first geochemical association (Zn-Sb-Ni-Ca-Co-Bi-Sn-Al-W-Cr-Fe-Na-P) includes PTEs coming from anthropogenic (Zn, Sb, Bi, Ca), anthropogenic-terrigenous (W, Sn, Co, Ni, Na, P) and terrigenous (Al, Fe, Cr) sources. Sb, Zn, Sn, Bi, W, and Ni indicate the resuspension of road dust and its various grain size particles, since in Moscow and some other cities road dust is highly enriched with these PTEs (Ladonin and Plyaskina 2009;Fedotov et al 2014;Ermolin et al 2018;Kasimov et al 2019a;Ladonin and Mikhaylova 2020;Vlasov et al 2021b). For example, in the eastern part of Moscow, the fine fraction PM 1 and the coarser PM 1-10 of road dust are significantly (EF > 5) enriched in Sb, W, Sn, Cd, Zn, Cu, Pb, Mo, and Bi, especially on Moscow Ring Road and highways (Vlasov et al 2015;Kasimov et al 2020).…”

Section: Sources Of Ptes In Rainwatermentioning

confidence: 99%

Daily Variations In Wet Deposition And Washout Rates Of Potentially Toxic Elements In Moscow During Spring Season

Власов

Еремина

Shinkareva

et al. 2021

GES

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For the first time, the wet deposition and washout rates of soluble forms of potentially toxic elements (PTEs) were estimated in rains during the spring AeroRadCity experiment in Moscow. Rains are an important factor in reducing atmospheric pollution with PTEs in Moscow. Due to the resuspension of contaminated particles of road dust and urban soils, industrial and traffic impact, waste and biomass burning, rainwater is highly enriched in Sb, Pb, Se, Cd, and S, and less enriched in P, Ba, As, W, Mn, Sn, Na, Co, Ni, and Be. Significant wet deposition (μg/m2 per event) and washout rates (μg/m2 per hour) of PTEs were revealed during the public holidays in May which corresponded to the elevated aerosol content due to predominant air advection from southern and south-western regions in this period. During continuous rains, the level of PTEs wet deposition sharply decreases on the second and subsequent days due to the active below-cloud washout of aerosols during the initial precipitation events. We show that the length of the dry period and aerosol content before the onset of rain determines the amount of solid particles in rainwater, which leads to an increase in rainwater pH, and strongly affects wet deposition and washout rates of PTEs of mainly anthropogenic origin (W, Zn, Bi, Cd, Sb, Ni, B, S, K, and Cu). At the same time rainfall intensity contributes to an increase in wet deposition and washout rates of Se, As, B, Cu, Sb, S, Cd, Ba, Rb, and K. The obtained results provide a better understanding of atmospheric deposition processes and can be useful in assessing the urban environmental quality.

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“…Thus, the pollution index (PI) [74] requires data on pre-industrial HM levels only known for a limited set of chemical elements. It also does not consider contamination with hazardous pollutants such as Sb, Mo, W, Sn, Ag, Bi, and others, which, for instance, are highly accumulated in road dust, soils, bottom sediments, suspended particles in snow, and rains in the largest megacity of Europe-Moscow [75][76][77][78].…”

Section: Assessment Of Solid Components Of the Environment Pollution With Hms' Chemical Fractionsmentioning

confidence: 99%

Integrated Assessment of Affinity to Chemical Fractions and Environmental Pollution with Heavy Metals: A New Approach Based on Sequential Extraction Results

Vodyanitskii

Власов

2021

IJERPH

Self Cite

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To assess the affinity degree of heavy metals (HMs) to geochemical phases, many indices with several limitations are used. Thus, this study aims to develop a new complex index for assessing contamination level and affinity to chemical fractions in various solid environmental media. For this, a new integrated approach using the chemical affinity index (CAF) is proposed. Comparison of CAF with %F on the literature examples on fractionation of HMs from soils, bottom sediments, atmospheric PM10, and various particle size fractions of road dust proved a less significant role of the residual HMs fraction and a greater contribution of the rest of the chemical fractions in the pollution of all studied environments. This fact is due to the normalization relative to the global geochemical reference standard, calculations of contribution of an individual element to the total pollution by all studied HMs, and contribution of the particular chemical fraction to the total HMs content taken into account in CAF. The CAF index also shows a more significant role in pollution and chemical affinity of mobile and potentially mobile forms of HMs. The strong point of CAF is the stability of the obtained HM series according to the degree of chemical affinity and contamination. Future empirical studies are necessary for the more precise assessment of CAF taking into account the spatial distribution of HMs content, geographic conditions, geochemical factors, the intensity of anthropogenic impact, environmental parameters (temperature, humidity, precipitation, pH value, the content of organic matter, electrical conductivity, particle size distribution, etc.). The combined use of CAF along with other indices allows a more detailed assessment of the strength of HMs binding to chemical phases, which is crucial for understanding the HMs’ fate in the environment.

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Spatial distribution and sources of potentially toxic elements in road dust and its PM10 fraction of Moscow megacity

Cited by 81 publications

References 126 publications

Spatial Distribution and Chemical Composition of Road Dust in Two High-Altitude Latin American Cities

Spatial Distribution and Chemical Composition of Road Dust in Two High-Altitude Latin American Cities

Daily Variations In Wet Deposition And Washout Rates Of Potentially Toxic Elements In Moscow During Spring Season

Integrated Assessment of Affinity to Chemical Fractions and Environmental Pollution with Heavy Metals: A New Approach Based on Sequential Extraction Results

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