The effects of some soil characteristics on radon emanation and diffusion

Huynh, Nguyen Phong Thu; Thắng, Nguyễn Văn; Hao, Le Cong

doi:10.1016/j.jenvrad.2020.106189

Cited by 40 publications

(25 citation statements)

References 30 publications

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“…Part of the atoms remaining in the solid phase that make up bound radon. But the recoil energy of about 86 keV is quite enough for some of the atoms to be released outside the solid, forming free radon (IAEA 2013;Thu et al 2020). Considering the above, there are three scenarios for the behavior of the radon atom after its formation as a result of the decay of the radium-226 atom.…”

Section: Permafrost As a Barrier To Radioactive Radon Gasmentioning

confidence: 99%

“…In the second case, the recoil energy is enough to overcome the boundaries of one grain of solid matter, to pass through the pore space, but to be included in the composition of another grain of solid matter. In the third case, the radon atom remains in the pore space and enters the environment, which in turn constitutes the process of radon emanation (Hassan et al 2009;Eakin et al 2016;Thu et al 2020).…”

Section: Permafrost As a Barrier To Radioactive Radon Gasmentioning

confidence: 99%

See 1 more Smart Citation

Radon Hazard In Permafrost Conditions: Current State Of Research

Puchkov

Yakovlev

Hasson

et al. 2021

GES

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In this paper, we review both practical and theoretical assessments for evaluating radon geohazards from permafrost landforms in northern environments (>60º N). Here, we show that polar amplification (i.e. climate change) leads to the development of thawing permafrost, ground subsidence, and thawed conduits (i.e. Taliks), which allow radon migration from the subsurface to near surface environment. Based on these survey results, we conjecture that abruptly thawing permafrost soils will allow radon migration to the near surface, and likely impacting human settlements located here. We analyze potential geohazards associated with elevated ground concentrations of natural radionuclides. From these results, we apply the main existing legislation governing the control of radon parameters in the design, construction and use of buildings, as well as existing technologies for assessing the radon hazard. We found that at present, these laws do not consider our findings, namely, that increasing supply of radon to the surface during thawing of permafrost will enhance radon exposure, thereby, changing prior assumptions from which the initial legislation was determined. Hence, the legislation will likely need to respond and reconsider risk assessments of public health in relation to radon exposure. We discuss the prospects for developing radon geohazard monitoring, methodical approaches, and share recommendations based on the current state of research in permafrost effected environments.

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Section: Permafrost As a Barrier To Radioactive Radon Gasmentioning

confidence: 99%

Section: Permafrost As a Barrier To Radioactive Radon Gasmentioning

confidence: 99%

Radon Hazard In Permafrost Conditions: Current State Of Research

Puchkov

Yakovlev

Hasson

et al. 2021

GES

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“…One of the important values of the uncertainty of measurements of radon activity in our experiment is the parameter of radon leakage from the container [23,30]. The estimation of the radon leakage parameter was carried out in the same geometry as the main experiment to determine the emanation coefficient.…”

Section: Assessment Of Radon Leakagementioning

confidence: 99%

“…Then a series of measurements of the volumetric activity of radon in the second container was carried out for 10 days every day. Based on the measurement results, the parameter of radon leakage, λ l , was determined in a plastic container using the following formula [30]:…”

Section: Assessment Of Radon Leakagementioning

confidence: 99%

Radon over Kimberlite Pipes: Estimation of the Emanation Properties of Rocks (Lomonosov Diamond Deposit, NW Russia)

Yakovlev

Puchkov

2021

Applied Sciences

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In this paper, using the example of the Lomonosov diamond deposit, experimental studies of rocks were carried out to assess the main radiation and physical factors affecting the formation of the radon field over the kimberlite pipes of the Arkhangelsk diamondiferous province. For various types of rocks, represented by vent kimberlites, tuffaceous-sedimentary rocks of the crater and enclosing and overlying sediments, the following were studied: porosity, density, activity of radium-226, activity of radon in a free state, level of radon production, and emanation coefficient. The research results showed that the greatest amount of radon in a free state is produced by rocks of the near-pipe space, represented by the enclosing Vendian V2 deposits and characterized by high values of the emanation coefficient, radium activity, radon production level and porosity. This fact is associated with the structural and geological features of the near-pipe space, which was exposed to the impact of kimberlite magma on the host rocks. The lowest values of these parameters are characteristic of the kimberlites of the vent facies, which limits the formation of free radon in the body of the pipe. The results of the experimental studies create prospects for the development of emanation methods for searching for kimberlite pipes in the conditions of the Arkhangelsk diamondiferous province.

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“…Meanwhile, other variables like meteorological parameters and soil characteristics are intrinsically related because of their influence in radon concentration [3,5,7,9]. This kind of studies is characterised by a challenging task: to derive meaningful insights from collected data [6,7].…”

Section: Introductionmentioning

confidence: 99%

Ontology-based Data Management Tool for Studying Radon Concentration

̃na¹,

Maigua-Quinteros²,

Urrutia-Urrutia³

et al. 2020

Adv. sci. technol. eng. syst. j.

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Interpreting data for solving information needs demands an understanding of the semantics of row data. In this paper, an ontology-driven management of data of the presence of radon gas in soil is presented. The main contribution of this research relies on the formal definition of the semantic of the presence of radon in the dimensions of space and time. As a result, a dynamic data view generator for the observation of radon measurements was deployed without actual software programming but with the proper adjustment and instantiation of the ontology ViewOnto, a web ontology which was created for the formal description of data views. An experimental assessment of the proposal was carried out with data obtained from stone aggregate mines and civil constructions in Tungurahua. The usability of the resulting data management system was successfully validated with the criteria of experts on usability and researchers with experience in radon measurement.

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The effects of some soil characteristics on radon emanation and diffusion

Cited by 40 publications

References 30 publications

Radon Hazard In Permafrost Conditions: Current State Of Research

Radon Hazard In Permafrost Conditions: Current State Of Research

Radon over Kimberlite Pipes: Estimation of the Emanation Properties of Rocks (Lomonosov Diamond Deposit, NW Russia)

Ontology-based Data Management Tool for Studying Radon Concentration

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