Please use this identifier to cite or link to this item: http://hdl.handle.net/10995/102921
Title: Gross alpha and gross beta activity concentrations in the dust fractions of urban surface-deposited sediment in russian cities
Authors: Hanfi, M. Y.
Yarmoshenko, I.
Seleznev, A. A.
Issue Date: 2021
Publisher: MDPI AG
Citation: Hanfi M. Y. Gross alpha and gross beta activity concentrations in the dust fractions of urban surface-deposited sediment in russian cities / M. Y. Hanfi, I. Yarmoshenko, A. A. Seleznev. — DOI 10.3390/atmos12050571 // Atmosphere. — 2021. — Vol. 12. — Iss. 5. — 571.
Abstract: 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 dustsized (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. © 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Keywords: GROSS ALPHA ACTIVITY
GROSS BETA ACTIVITY URBAN ENVIRONMENT
SEDIMENT
SIZE FRACTION
GEOCHEMISTRY
SEDIMENTS
ANTHROPOGENIC PROCESS
DEPOSITED SEDIMENTS
EXPERIMENTAL METHODS
GEOCHEMICAL PROCESS
GROSS ALPHA ACTIVITIES
NATURAL PARTITIONING
RADIATION MEASUREMENTS
SIZE FRACTIONATION
URBAN TRANSPORTATION
CONCENTRATION (COMPOSITION)
DUST
EXPERIMENTAL STUDY
SEDIMENT TRANSPORT
SIZE DISTRIBUTION
SOURCE APPORTIONMENT
URBAN AREA
NIZHEGOROD
ROSTOV [RUSSIAN FEDERATION]
ROSTOV-ON-DON
RUSSIAN FEDERATION
URI: http://hdl.handle.net/10995/102921
Access: info:eu-repo/semantics/openAccess
SCOPUS ID: 85105722479
PURE ID: 21869792
86258b95-638b-442d-aa9d-ac27f0b171ed
ISSN: 20734433
DOI: 10.3390/atmos12050571
metadata.dc.description.sponsorship: The study was supported by Russian Science Foundation (grant No. 18-77-10024). Institutional Review Board Statement: Not applicable. Informed Consent Statement: Not applicable.
RSCF project card: 18-77-10024
Appears in Collections:Научные публикации, проиндексированные в SCOPUS и WoS CC

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