STUDY OF THE INFLUENCE OF SOIL MOISTURE AND GRAIN SIZE ON RADON EMANATION FROM SOIL USING AN ADVANCED MULTIGRAIN MODEL

Author:

Eckertová Terézia12,Böhm Radoslav12,Holý Karol12

Affiliation:

1. Department of Nuclear Physics and Biophysics , Faculty of Mathematics, Physics and Informatics, , Mlynská Dolina F-1, 841 04 Bratislava, Slovak Republic

2. Comenius University in Bratislava , Faculty of Mathematics, Physics and Informatics, , Mlynská Dolina F-1, 841 04 Bratislava, Slovak Republic

Abstract

Abstract Among the most important factors that influence radon emanation from soil particles is the soil moisture and grain size. Both components, in its own way, modify the length of a trajectory that radon atom pass through in a volume of the soil pores. To better understand their impact on an emanation, we have developed our own computer program that can simulate the 222Rn emanation process in the soil environment, using an idea of a multigrain model. In our case, the central, radium-bearing soil grain is surrounded by 1330 adjacent grains of the same size forming a cubic structure and the moisture in a space of the soil pores is differently distributed. The simulation process is based on a two different distribution of 226Ra in soil grains (homogenous and heterogenous), while several variants of the thickness of an escape layer are analyzed for grains of different sizes and moisture contents.

Funder

Grants for the Young Researchers of CU

Scientific Grant Agency of Ministry of Education of Slovak Republic and Slovak Academy of Sciences

Publisher

Oxford University Press (OUP)

Subject

Public Health, Environmental and Occupational Health,Radiology, Nuclear Medicine and imaging,General Medicine,Radiation,Radiological and Ultrasound Technology

Reference19 articles.

1. Review on the sources and impacts of radon indoor air pollution;Al Jassim;J. Environ. Toxicol. Stud.,2018

2. The effects of some soil characteristics on radon emanation and diffusion;Phong Thu;J. Environ. Radioact.,2020

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1. Indoor Radon: Sources, Transport Mechanisms and Influencing Parameters;Indoor Radon - Sources, Transport Mechanisms and Influencing Parameters;2023-10-25

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