Analysis of temperature influences on the amplitude–frequency characteristics of Rn gas concentration

M Finkelstein, LV Eppelbaum, C Price - Journal of Environmental …, 2006 - Elsevier
The ventilation mechanism of Rn gas in underground environments is considered.
Ventilation plays an important role in influencing the variability (harmonics) of Rn gas in the …

Numerical simulation of radon transport from subsurface to buildings

T Kohl, F Medici, L Rybach - Journal of applied geophysics, 1994 - Elsevier
The finite element code FRACTure was conceived for the stimulation of forced fluid flow in
fractured rock. For the treatment of radon transport through the subsurface only minor …

Detection of near-surface permeable zones based on spatial correlation between radon gas concentration and DTM-derived lineament density

MN Heriawan, AA Syafi'i, A Saepuloh, T Kubo… - Natural Resources …, 2021 - Springer
Abstract Radon-222 (Rn) concentrations in soil gas have been used to locate near-surface
permeable zones (eg, fractures, faults) along which hydrothermal fluids ascend in …

Seasonal variations of natural ventilation and radon-222 exhalation in a slightly rising dead-end tunnel

F Perrier, P Richon, U Gautam, DR Tiwari… - Journal of …, 2007 - Elsevier
The concentration activity of radon-222 has been monitored, with some interruptions, from
1997 to 2005 in the end section of a slightly rising, dead-end, 38-m long tunnel located in …

Observations and box model analysis of radon-222 in the atmospheric surface layer at L'Aquila, Italy: March 2009 case study

G Pitari, E Coppari, N De Luca, P Di Carlo - Environmental earth sciences, 2014 - Springer
Two years of radon-222 observations collected at L'Aquila (Italy) in the atmospheric surface
layer during 2004–2006 were analyzed in correlation with meteorological data and other …

Deciphering and predicting microscale controls on radon production in soils, sediments and rock

N Mehta, BD Kocar - Soil Systems, 2018 - mdpi.com
Soils, sediments and rock are natural sources of radon (Rn), which poses an ongoing threat
to human health. Numerous studies have measured Rn release from bulk earth materials …

Radon-222 signatures of natural ventilation regimes in an underground quarry

F Perrier, P Richon, C Crouzeix, P Morat… - Journal of Environmental …, 2004 - Elsevier
Radon-222 activity concentration has been monitored since 1999 in an underground
limestone quarry located in Vincennes, near Paris, France. It is homogeneous in summer …

Inter-comparison of different direct and indirect methods to determine radon flux from soil

C Grossi, A Vargas, A Camacho, I López-Coto… - Radiation …, 2011 - Elsevier
The physical and chemical characteristics of radon gas make it a good tracer for use in the
application of atmospheric transport models. For this purpose the radon source needs to be …

Modeling of radon exhalation from soil influenced by environmental parameters

J Yang, H Busen, H Scherb, K Hürkamp, Q Guo… - Science of the Total …, 2019 - Elsevier
Atmospheric radioactive noble gas radon (Rn-222) originates from soil gas exhaled in the
atmospheric surface layer. Radon exhalation rates from soil as well as corresponding …

Finite element modeling of radon distribution in natural soils of different geophysical regions

YI Hafez, ES Awad - Cogent Physics, 2016 - Taylor & Francis
Radon migration from deep soil to the earth's surface is investigated numerically using a
developed Finite Element numerical model. The objectives of this study are: to predict the …