Investigation of features in radon soil dynamics and search for influencing factors

Grigorii Yakovlev, Maxim Cherepnev, Petr Nagorskiy, Valentina Yakovleva

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The features in radon soil dynamics at two depths were investigated and the main influencing factors were revealed. The monitoring of radon volumetric activity in soil air was performed at experimental site of Tomsk Observatory of Radioactivity and Ionizing Radiation with using radon radiometers and scintillation detectors of alpha-radiation with 10 min sampling frequency. The detectors were installed into boreholes of 0.5 and 1 m depths. The analysis of the soil radon monitoring data has allowed revealing some dependencies at daily and annual scales and main influencing factors. In periods with clearly defined daily radon variations in the soil were revealed the next: 1) amplitude of the daily variations of the soil radon volumetric activity damps with the depth, that is related with the influence of convective fluxes in the soil; 2) temporal shift between times of occurrence of radon volumetric activity maximum (or minimum) values at 0.5 m and 1 m depths can reach 3 hours. In seasonal dynamics of the soil radon the following dependences were found: 1) maximal values are observed in winter, but minimal - in summer; 2) spring periods of snow melting are accompanied by anomaly increasing of radon volumetric activity in the soil up to about 3 times. The main influencing factors are atmospheric precipitations, temperature gradient in the soil and the state of upper soil layer.

Original languageEnglish
Title of host publicationIV International Conference for Young Scientists, Post-Graduate Students and Students - Isotopes
Subtitle of host publicationTechnologies, Materials and Application, ITMA 2017
EditorsLiudmyla Rieznichenko, Li Hongda, Anna Godymchuk
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735416307
DOIs
Publication statusPublished - 14 Mar 2018
Event4th International Conference for Young Scientists, Post-Graduate Students and Students - Isotopes: Technologies, Materials and Application, ITMA 2017 - Tomsk, Russian Federation
Duration: 30 Oct 20173 Nov 2017

Publication series

NameAIP Conference Proceedings
Volume1938
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

Conference4th International Conference for Young Scientists, Post-Graduate Students and Students - Isotopes: Technologies, Materials and Application, ITMA 2017
CountryRussian Federation
CityTomsk
Period30.10.173.11.17

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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