Daily Variations In Wet Deposition And Washout Rates Of Potentially Toxic Elements In Moscow During Spring Season
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 c...
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| Format: | Article |
| Language: | English |
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Lomonosov Moscow State University
2021-04-01
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| Series: | Geography, Environment, Sustainability |
| Subjects: | |
| Online Access: | https://ges.rgo.ru/jour/article/view/1710 |
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| author | Dmitry V. Vlasov Irina D. Eremina Galina L. Shinkareva Natalia E. Chubarova Nikolay S. Kasimov |
| author_facet | Dmitry V. Vlasov Irina D. Eremina Galina L. Shinkareva Natalia E. Chubarova Nikolay S. Kasimov |
| author_sort | Dmitry V. Vlasov |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-04-10T02:32:39Z |
| format | Article |
| id | doaj.art-8d886ebb05814fa88e3ead9bce055663 |
| institution | Directory Open Access Journal |
| issn | 2071-9388 2542-1565 |
| language | English |
| last_indexed | 2024-04-10T02:32:39Z |
| publishDate | 2021-04-01 |
| publisher | Lomonosov Moscow State University |
| record_format | Article |
| series | Geography, Environment, Sustainability |
| spelling | doaj.art-8d886ebb05814fa88e3ead9bce0556632023-03-13T07:52:34ZengLomonosov Moscow State UniversityGeography, Environment, Sustainability2071-93882542-15652021-04-0114121923310.24057/2071-9388-2020-162538Daily Variations In Wet Deposition And Washout Rates Of Potentially Toxic Elements In Moscow During Spring SeasonDmitry V. Vlasov0Irina D. Eremina1Galina L. Shinkareva2Natalia E. Chubarova3Nikolay S. Kasimov4Lomonosov Moscow State UniversityLomonosov Moscow State UniversityLomonosov Moscow State UniversityLomonosov Moscow State UniversityLomonosov Moscow State UniversityFor 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.https://ges.rgo.ru/jour/article/view/1710wet depositionwashout rateurban environmentcontamination of precipitationsoluble forms of chemical elements |
| spellingShingle | Dmitry V. Vlasov Irina D. Eremina Galina L. Shinkareva Natalia E. Chubarova Nikolay S. Kasimov Daily Variations In Wet Deposition And Washout Rates Of Potentially Toxic Elements In Moscow During Spring Season Geography, Environment, Sustainability wet deposition washout rate urban environment contamination of precipitation soluble forms of chemical elements |
| title | Daily Variations In Wet Deposition And Washout Rates Of Potentially Toxic Elements In Moscow During Spring Season |
| title_full | Daily Variations In Wet Deposition And Washout Rates Of Potentially Toxic Elements In Moscow During Spring Season |
| title_fullStr | Daily Variations In Wet Deposition And Washout Rates Of Potentially Toxic Elements In Moscow During Spring Season |
| title_full_unstemmed | Daily Variations In Wet Deposition And Washout Rates Of Potentially Toxic Elements In Moscow During Spring Season |
| title_short | Daily Variations In Wet Deposition And Washout Rates Of Potentially Toxic Elements In Moscow During Spring Season |
| title_sort | daily variations in wet deposition and washout rates of potentially toxic elements in moscow during spring season |
| topic | wet deposition washout rate urban environment contamination of precipitation soluble forms of chemical elements |
| url | https://ges.rgo.ru/jour/article/view/1710 |
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