Gross Alpha and Gross Beta Activity Concentrations in the Dust Fractions of Urban Surface-Deposited Sediment in Russian Cities
Studies of gross alpha and gross beta activity in road- and surface-deposited sediments were conducted in three Russian cities in different geographical zones. To perform radiation measurements, new methods were applied which allow dealing with low mass and low volume dust-sized (2–100 μm) samples o...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-04-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/12/5/571 |
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| author | Mohamed Y. Hanfi Ilia Yarmoshenko Andrian A. Seleznev |
| author_facet | Mohamed Y. Hanfi Ilia Yarmoshenko Andrian A. Seleznev |
| author_sort | Mohamed Y. Hanfi |
| collection | DOAJ |
| description | Studies of gross alpha and gross beta activity in road- and surface-deposited sediments were conducted in three Russian cities in different geographical zones. To perform radiation measurements, new methods were applied which allow dealing with low mass and low volume dust-sized (2–100 μm) samples obtained after the size fractionation procedure. The 2–10 μm fraction size had the highest gross beta activity concentration (GB)—1.32 Bq/g in Nizhny Novgorod and Rostov-On-Don, while the 50–100 μm fraction size was most prominent in Ekaterinburg. This can be attributed to the presence of radionuclides that are transferred through natural and anthropogenic processes. The highest gross alpha activity concentration (GA) in fraction sizes was found in Rostov-on-Don city within the 50–100 μm range—0.22 Bq/g. The fraction sizes 50–100 μm have a higher gross alpha activity concentration than 2–10 μm and 10–50 μm fraction sizes due to natural partitioning of the main minerals constituting the urban surface-deposited sediment (USDS). Observed dependencies reflect the geochemical processes which take place during the formation and transport of urban surface sediments. Developed experimental methods of radiation measurements formed the methodological base of urban geochemical studies. |
| first_indexed | 2024-03-10T11:51:53Z |
| format | Article |
| id | doaj.art-328addcbb60743b38a670770fe465d3d |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-10T11:51:53Z |
| publishDate | 2021-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-328addcbb60743b38a670770fe465d3d2023-11-21T17:36:46ZengMDPI AGAtmosphere2073-44332021-04-0112557110.3390/atmos12050571Gross Alpha and Gross Beta Activity Concentrations in the Dust Fractions of Urban Surface-Deposited Sediment in Russian CitiesMohamed Y. Hanfi0Ilia Yarmoshenko1Andrian A. Seleznev2Institute of Physics and Technology, Ural Federal University, Mira St 19, 620002 Ekaterinburg, RussiaInstitute of Industrial Ecology Ural Branch of Russian Academy of Sciences, S. Kovalevskoy St. 20, 620219 Ekaterinburg, RussiaInstitute of Physics and Technology, Ural Federal University, Mira St 19, 620002 Ekaterinburg, RussiaStudies of gross alpha and gross beta activity in road- and surface-deposited sediments were conducted in three Russian cities in different geographical zones. To perform radiation measurements, new methods were applied which allow dealing with low mass and low volume dust-sized (2–100 μm) samples obtained after the size fractionation procedure. The 2–10 μm fraction size had the highest gross beta activity concentration (GB)—1.32 Bq/g in Nizhny Novgorod and Rostov-On-Don, while the 50–100 μm fraction size was most prominent in Ekaterinburg. This can be attributed to the presence of radionuclides that are transferred through natural and anthropogenic processes. The highest gross alpha activity concentration (GA) in fraction sizes was found in Rostov-on-Don city within the 50–100 μm range—0.22 Bq/g. The fraction sizes 50–100 μm have a higher gross alpha activity concentration than 2–10 μm and 10–50 μm fraction sizes due to natural partitioning of the main minerals constituting the urban surface-deposited sediment (USDS). Observed dependencies reflect the geochemical processes which take place during the formation and transport of urban surface sediments. Developed experimental methods of radiation measurements formed the methodological base of urban geochemical studies.https://www.mdpi.com/2073-4433/12/5/571gross alpha activitygross beta activity urban environmentsedimentsize fraction |
| spellingShingle | Mohamed Y. Hanfi Ilia Yarmoshenko Andrian A. Seleznev Gross Alpha and Gross Beta Activity Concentrations in the Dust Fractions of Urban Surface-Deposited Sediment in Russian Cities Atmosphere gross alpha activity gross beta activity urban environment sediment size fraction |
| title | Gross Alpha and Gross Beta Activity Concentrations in the Dust Fractions of Urban Surface-Deposited Sediment in Russian Cities |
| title_full | Gross Alpha and Gross Beta Activity Concentrations in the Dust Fractions of Urban Surface-Deposited Sediment in Russian Cities |
| title_fullStr | Gross Alpha and Gross Beta Activity Concentrations in the Dust Fractions of Urban Surface-Deposited Sediment in Russian Cities |
| title_full_unstemmed | Gross Alpha and Gross Beta Activity Concentrations in the Dust Fractions of Urban Surface-Deposited Sediment in Russian Cities |
| title_short | Gross Alpha and Gross Beta Activity Concentrations in the Dust Fractions of Urban Surface-Deposited Sediment in Russian Cities |
| title_sort | gross alpha and gross beta activity concentrations in the dust fractions of urban surface deposited sediment in russian cities |
| topic | gross alpha activity gross beta activity urban environment sediment size fraction |
| url | https://www.mdpi.com/2073-4433/12/5/571 |
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