рус eng
«IZVESTIYA IRKUTSKOGO GOSUDARSTVENNOGO UNIVERSITETA». SERIYA «NAUKI O ZEMLE»
«THE BULLETIN OF IRKUTSK STATE UNIVERSITY». SERIES «EARTH SCIENCES»
ISSN 2073-3402 (Print)

List of issues > Series «Earth Sciences». 2026. Vol 55

Radon Flux Density in the Soils of the Livanovsky and Tyumen-Chudinovsky Faults in the South of the Tyumen Region

Author(s)

N. E. Guryev, A. A. Rybina, E. O. Zonova

Tyumen State University, Tyumen, Russian Federation

Abstract
The article presents the result of the first integrated exploration of radon-222 flux density (RFD) in the southern part of Tyumen region, conducted within the Livanovsky and TyumenChudinovsky fault zones, taking into the tectonic, soils and microclimatic characteristics of the region. The object of the study was surface layer of soils/subsoils, the pedogenic horizons of zonal soil types and subtypes, as well as in the parent rock material, which made it possible to assess to features of vertical radon distribution and migration in the near-surface zone. The study identified areas with anomalous high radon flux density values, and their spatial distribution was visualized using cartographic methods. The surface radom-222 flux density values within the entire study area range from 11 ± 3 mBq/m2ꞏs to 1126 ± 337 mBq/m2ꞏs. The vertical distribution of RFD within soil horizons in heterogeneous and depends of the survey profile, with higher values typically observed in peripheral sections of the study area. It was established that the formation of radon anomalies is associated with fault zones and controlled by the physical properties of soils and local microclimatic conditions, including soil physical parameters. Atmospheric air temperature and soil density were identified as a dominant factor influencing RFD values in soils. The revealed patterns of RFD variation within soil profiles confirm the significant role of soils and parent rock material in regular radon transport to the soil surface and ground air. The attained results can be applied in environmental monitoring, engineering and ecological surveys, and in assessment of radiation and environmental conditions of the territory.
About the Authors

Guryev Nikita Evgenievich, Senior Lecturer, Department of Geoecology and Environmental Management Tyumen State University 6, Volodarsky st., Tyumen, 625033, Russian Federation e-mail: nikitka.gurev.1996@mail.ru

Rybina Arina Aleksandrovna, Student Tyumen State University 6, Volodarsky st., Tyumen, 625033, Russian Federation e-mail: aydzya13@yanex.ru

Zonova Ekaterina Olegovna Student Tyumen State University 6, Volodarsky st., Tyumen, 625033

For citation
Guryev N.E., Rybina A.A., Zonova E.O. Radon Flux Density in the Soils of the Livanovsky and TyumenChudinovsky Faults in the South of the Tyumen Region. The Bulletin of Irkutsk State University. Series Earth Sciences, 2026, vol. 55, pp. 20-36. https://doi.org/10.26516/2073-3402.2026.55.20 (in Russian)
Keywords
radon-222, flux density, fault zone, soils, Tyumen region.
UDC
546.296:631.4:551.24(571.12)
DOI
https://doi.org/10.26516/2073-3402.2026.55.20
References
  1. Marennyi A.M., Miklyaev P.S., Petrova T.B. et al. Vremennye fluktuatsii plotnosti potoka radona na territorii Moskvy [Time Fluctuations of Radon Flux in Territory of Moscow]. ANRI [ANRI Journal], 2022, no. 1, pp. 23-26 (in Russian)
  2. Gvozdetskii N.A. Fiziko-geograficheskoe raionirovanie Tyumenskoi oblasti [Physical and geographical zoning of the Tyumen region]. Moscow, Moscow Universiry Press Publ., 1973, 246 p. (in Russian)
  3. Gur'ev N.E., Klimenko V.V. Kompleksnoe radiatsionno-ekologicheskoe issledovanie goroda Tyumeni [Comprehensive radiation and ecological study of the city of Tyumen]. Sotsialno-ekologicheskie tekhnologii [Environment and Human: Ecological Studies], 2023, vol. 13, no. 3. pp. 278-291. https://doi.org/10.31862/2500-2961-2023-13-3-278-291 (in Russian)
  4. Demin V.F., Nikonov I.V., Antsiferova A.A. Otsenka riska vozdeistviya radioaktivnogo radona na zdorov'e cheloveka s uchetom nanodispersnykh produktov ego raspada [Radon exposure risk assessment on human health taking into account nanodispersed degradation products]. Rossiiskie nanotekhnologii [Nanobiotechnology Reports], 2020, vol. 15, no. 2, pp. 252-258. https://doi.org/10.1134/S1992722320020065 (in Russian)
  5. Karetin L.N. Pochvy Tyumenskoi oblasti [Soils of the Tyumen region]. Novosibirsk, Nauka Publ., 1990, 286 p.
  6. Egorov V.V., Friedland V.M., Ivanova E.N. et al. Klassifikatsiya i diagnostika pochv SSSR [Classification and diagnostics of soils of the USSR]. Moscow, Kolos Publ., 1977, 224 p.
  7. Kolobov A.P. Plotnost' potoka Radona-222 v pochvakh Tobol'skogo raiona Tyumenskoi oblasti [The radon flux density in the Soils of the Tobolsk District of the Tyumen region]. Izvestiya Irkutskogo gosudarstvennogo universiteta. Seriya Nauki o Zemle [The Bulletin of Irkutsk State University, Series Earth Sciences], 2022, vol. 39, pp. 56-68. https://doi.org/10.26516/2073-3402.2022.39.56 (in Russian)
  8. Kuzmin Yu. O., Zhukov V.S. Sovremennaya geodinamika i variatsii fizicheskikh svoistv gornykh porod [Modern geodynamics and variations in the physical properties of rocks]. Moscow, Gornaya kniga Publ, 2012, 264 p. (in Russian)
  9. Matveev A.V., Karabanov A.K., Avtushko M.I. Radon v geologicheskikh kompleksakh Belarusi [Radon in geological complexes of Belarus]. Minsk, Republican Unitary Enterprise Publishing House Belarusian Science, 2017, 136 p. (in Russian)
  10. Miklyaev P.S., Petrova T.B. Issledovaniya anomalnykh sezonnykh variatsii plotnosti potoka radona v zone razloma [Study of abnormal seasonal variations in the radon exhalation rate in a fault zone]. Geokhimiya [Geochemistry International], 2021, vol. 66, no. 44. pp. 364-378. https://doi.org/10.31857/s001675252104004x (in Russian)
  11. Sindireva A.V. Gur'ev N.E., Venediktova Yu.V., Abdullin A.F. Radiatsionno-ekologicheskaya otsenka ovraga reki Tyumenka v g. Tyumeni [Radiation-ecological assessment of the ravine of the Tyumenka river, Tyumen]. Sotsialno-ekologicheskie tekhnologii [Environment and Human: Ecological Studies], 2024, vol. 14, no. 4, pp. 472-495. https://doi.org/10.31862/2500-2961-2024-14-4-472-495 (in Russian)
  12. Naumov V.D. Geographia pochv: obshchaya chastʹ [Geography of soils: general part]. Moscow, RG-Press Publ., 2023, 304 p. (in Russian)
  13. Miklyaev P.S., Petrova T.B., Klimshin A.V. et al. Radonovye anomalii v zonakh aktivnykh razlomov [Radon anomalies in active fault zones]. Sergievskie chteniya. Fundamentalnye i prikladnye voprosy inzhenernoi geodinamiki [Sergeev readings fundamental and applied issues of modern ground study], 2023, no. 24, pp. 51-56. (in Russian)
  14. Leshukov T.V., Legoshchin K.V., Larionov A.V., Lesin Yu.V. Radonoopasnost geologicheskoi sredy v ugledobyvayushchikh raionakh: prostranstvennoe issledovanie s primeneniem geoinformatsionnykh system [Radon hazard of the geological environment in coal mining regions: a spatial study using geographic information systems]. Uspekhi sovremennogo estestvoznaniya [Advances in current natural sciences], 2020, vol. 7, pp. 126-131. https://doi.org/10.17513/use.37442 (in Russian)
  15. Alimova G.S. Tokareva A.Yu., Utkina I.A. Samkova M.V. Raspredelenie radona-222 v pochvakh poimy i nadpoimennykh terras rek Irtysha i Tobola [Radon-222 distribution in the soils of the floodplain and fluvial terraces above floodplain of the Irtysh and Tobol rivers]. Izvestiya TPU [Bulletin of the Tomsk Polytechnic University], 2022. vol. 12, pp. 168-177. https://doi.org/10.18799/24131830/2022/12/3818 (in Russian)
  16. Seminskii K. Zh., Bobrov A.A., Demberel S. Radonovaya i tektonicheskaya aktivnost' razlomov zemnoi kory (na primere Tsentralnoi Mongolii) [Radon and tectonic activities of crustal faults: the case of Cantral Mongolia]. Geologiya i geofizika [Russian Geology and Geophysics], 2019, no. 60, vol. 2, pp. 243-255. https://doi.org/10.15372/GiG2019016 (in Russian)
  17. Starkov V.D., Migunov V.I. Radiatsionnaya ekologiya [Radiation ecology]. Tyumen, Tyumen House of Printing Publ, 2007, 400 p. (in Russian)
  18. Starkov V.D., Tyulkova L.A. Geologiya, relief, poleznye iskopaemye Tyumenskoi oblasti [Geology, topography and minerals of the Tyumen region]. Tyumen, Tyumen House of Printing Publ, 2012, 352 p. (in Russian)
  19. Tokareva A.Yu. Alimova G.S. Vliyanie glubiny ustanovki nakopitel'nykh kamer NK-32 na velichinu plotnosti potoka radona [The impact of the deep of installation of NK-32 storage chambers on the radon flux density]. Problemy regional'noi ekologii [Problems of regional ecology], 2021, vol. 6, pp. 92-102. https://doi.org/10.24412/1728-323X-2021-6-98-102 (in Russian)
  20. Udoratin V.V., Ezimova Yu.E., Magomedova A.Sh. Radonovaya s"emka dlya kartirovaniya razlomnykh zon Timano-Severouralskogo regiona [Radon survey for mapping fault zones on the Timan-Seveuralsk region]. Syktyvkar, Institute of Geology FRC Komi SC UB RAS Publ., 2021, 153 p. https://doi.org/10.19110/89606-020 (in Russian)
  21. Ahmad N., Khan I.U., Nasir T. An overview of radon concentration in Malaysia. Journal of radiation research and applied sciences, 2017, vol. 10, no. 4, pp. 327-330. https://doi.org/10.1016/j.jrras.2017.08.001
  22. Benà E, Ciotoli G., Petermann E. et al. A new perspective in radon risk assessment: Mapping the geological hazard as a first step to define the collective radon risk exposure. Science of The Total Environment, 2024. vol. 912, pp. 169-569. https://doi.org/10.1016/j.scitotenv.2023.169569
  23. Alonso H., Rubiano J.G., Guerra J.G. et al. Assessment of radon risk areas in the Eastern Canary Islands using soil radon gas concentration and gas permeability of soils. Science of the Total Environment, 2019. vol. 664, pp. 449-460. https://doi.org/10.1016/j.scitotenv.2019.01.411
  24. Moreno V., Bach J., Zarroca M. et al. Characterization of radon levels in soil and groundwater in the North Maladeta Fault area (Central Pyrenees) and their effects on indoor radon concentration in a thermal spa. Journal of Environmental Radioactivity, 2018. vol. 189, pp. 1-13. https://doi.org/10.1016/j.jenvrad.2018.03.001
  25. Drolet J.-P., Martel R. Distance to fault as a proxy for radon gas concentration in dwellings. Journal of Environmental Radioactivity, 2015. vol. 152, pp. 8-15. https://doi.org/10.1016/j.jenvrad.2015.10.023
  26. Martín-Gisbert L., Ruano-Raviña A., García G. et al. Duration versus intensity of exposure on the risk of lung cancer due to radon exposure in the general population. Science of The Total Environment, 2025. vol. 981. https://doi.org/10.1016/j.scitotenv.2025.179569
  27. Escobar V.G., Tome F.V., Lozano J.C. Procedures for the determination of 222Rn exhalation and effective 226Ra activity in soil samples. Applied radiation and Isotopes, 1999, vol. 50, no. 6, pp. 1039-1047. https://doi.org/10.1016/S0969-8043(98)00121-3
  28. Al-Naggar Tayseer I., Alsufyani Sultan J., Saftah A. et al. Evaluation of Radon222 concentrations in hair coloring products in Saudi Arabia. Journal of Radiation Research and Applied Sciences, 2025, vol. 18, no. 3. https://doi.org/10.1016/j.jrras.2025.101683
  29. Gogoi P.P., Phukan S., Barooah D. Seasonal variations in indoor radon (222Rn) and thoron (220Rn) levels, and radiation risks in the seismically active Kopili Fault Zone, India. Journal of Radioanalytical and Nuclear Chemistry, 2025, vol. 334, pp. 3703-3728, https://doi.org/10.1007/s10967-025-10094-2
  30. Romero-Mujalli G., Roisenberg A., Cordova-Gonzalez A. et al. Indoor radon concentration and a diffusion model in dwellings situated in a subalkaline granitoid area, Southern Brazil. Environmental Earth Sciences, 2021, vol. 80, no. 17, pp. 1-10. https://doi.org/10.1007/s12665-021-09849-3
  31. Jędrzejek F., Szarłowicz K., Stobiński M. A Geological Context in Radiation Risk Assessment to the Public. International Journal Environmental Research Public Health, 2022, no. 19, art. 11750. https://doi.org/10.3390/ijerph191811750
  32. Muhammad A., Külahcı F., Salh H. et al. Long Short Term Memory networks (LSTM)-Monte-Carlo simulation of soil ionization using radon. Journal of Atmospheric and Solar-Terrestrial Physics, 2021, vol. 221, art. 105688. https://doi.org/10.1016/j.jastp.2021.105688
  33. Lumniczky K., Impens N., Armengol G. et al. Low dose ionizing radiation effects on the immune system. Environment international, 2021, vol. 149, art. 106212. https://doi.org/10.1016/j.envint.2020.106212.
  34. Majumder R.K., Das S.C., Rasul M.G. et al. Measurement of radon concentrations and their annual effective doses in soils and rocks of Jaintiapur and its adjacent areas, Sylhet, North-east Bangladesh. Journal of Radioanalytical and Nuclear Chemistry, 2021, vol. 329, pp. 113. https://doi.org/10.1007/s10967-021-07771-3
  35. Omori Y., Nagahama H., Yasuoka Y. et al. Radon degassing triggered by tidal loading before an earthquake. Scientific reports, 2021. vol. 11, no. 1. pp. 1-10. https://doi.org/10.1038/s41598-021-83499-0
  36. Mahfuz Siraz M.M., Alam M.S., Jubair A.M. et al. Radon fluxes at four uranium mill tailings disposal sites after about 20 years of service. Journal of Environmental Radioactivity, 2021, vol. 237. https://doi.org/10.1016/j.jenvrad.2021.106719
  37. Rasha S. Ahmed Estimating the effective dose to human organs due to soil radon in southern Iraq. Journal of Radiation Research and Applied Sciences, 2025, vol. 18, no. 3. https://doi.org/10.1016/j.jrras.2025.101804
  38. Spasić D., Gulan L., Vučković B. Indoor radon testing, effective dose and mitigation measures in a residential house of a mining area. Atmosphere, 2024, vol. 15, no. 7, pp. 745. https://doi.org/10.3390/atmos15070745
  39. Tsapalov A., Kovler K., Miklyaev P. Open charcoal chamber method for mass measurements of radon exhalation rate from soil surface. Journal of environmental radioactivity, 2016, vol. 160, pp. 28-35. https://doi.org/10.1016/j.jenvrad.2016.04.016

Full text (russian)