scholarly journals Certain Rock Formations Can Lead to In-Home Radon Risks

Eos ◽  
2020 ◽  
Vol 101 ◽  
Author(s):  
Aaron Sidder
Keyword(s):  
Indoor Radon ◽  
The State ◽  
Home Test ◽  
Rock Formations ◽  
Geologic Map ◽  
Radon Potential

Researchers in Kentucky have merged results from home test kits with the state’s geologic map to produce a map of indoor radon potential based on the geology underlying homes in the state.

Resistance of building foundation to radon penetration

2019 ◽  
Vol 43 (5) ◽  
pp. 456-473
Author(s):  
Loren Gulabyants ◽  
Mihail Livshits ◽  
Alexandr Kalaydo ◽  
Konstantin Kovler
Keyword(s):  
Radon Concentration ◽  
Indoor Radon ◽  
Initial Distribution ◽  
Living Space ◽  
Building Foundation ◽  
State Diffusion ◽  
Building Geometry ◽  
Radon Potential ◽  
And Diffusion ◽  
Soil Changes

Two-dimensional model of the steady-state diffusion radon transport from the soil to the ground floor of the building is developed. Radon concentration distributions in the soil and the living space are calculated at different foundation geometries. The model considers radon entry from enclosing structures, outside air, and diffusion from the soil. The radon field under the building is described. The quantitative criteria for the resistance of the building foundation to radon penetration from the soil are defined. It is found that the resistance of the ground slab to radon penetration and radon concentration in the plane of the soil structure contact have a decisive influence on indoor radon, and that the initial distribution of radon concentration in the soil changes significantly after the building erection. These changes depend on the radon potential in the soil, its radon permeability, resistance of the floor structure to radon penetration, and building geometry.

Geogenic radon potential mapping using geospatial analysis of multiple radon-related variables: a case study from Southeastern Ireland

2020 ◽  
Author(s):  
Mirsina Mousavi ◽  
Quentin Crowley
Keyword(s):  
Regression Model ◽  
Radon Concentration ◽  
Indoor Radon ◽  
Spatial Regression ◽  
Geostatistical Analysis ◽  
Soil Gas ◽  
Natural Radiation ◽  
Spatial Regression Model ◽  
Soil Gas Radon ◽  
Radon Potential

<p>A detailed investigation of geogenic radon potential (GRP) was carried out using geostatistical analysis on multiple radon-related variables to evaluate natural radiation in an area of Southeast Ireland. The geological setting of the study area includes basal Devonian sandstones and conglomerates overlying an offshoot of the Caledonian Leinster Granite, which intrudes Ordovician sediments. The Ordovician sediments contain traces of autunite (Ca(UO<sub>2</sub>)2(PO<sub>4</sub>)<sub>2</sub>·10–12H<sub>2</sub>O), which is a uranium-bearing mineral and a source of radon. To model radon release potential at different locations, a spatial regression model was developed in which soil gas radon concentration measured in-situ using a Radon RM-2 detector was considered as a response value. Proxy variables such as local geology, soil types, terrestrial gamma dose rates, radionuclide concentrations from airborne radiometric surveys, soil gas permeability, distance from major faults and a Digital Terrain Model were used as the main predictors. Furthermore, the distribution of indoor radon concentration was simulated using a soil-indoor transfer factor. Finally, the workability of the proposed GRP model was tested by evaluating the correlation between previously measured indoor radon concentrations and the estimated values by the GRP model at the same measurement locations. This model can also be used to estimate the GRPs of other areas where radon-related proxy values are available.        </p><p><strong>Keywords:</strong> Natural radiation, geogenic radon potential, geostatistical analysis, spatial regression model, indoor radon simulation</p>

Indoor radon correlated with soil and subsoil radon potential—a case study

1992 ◽  
Vol 19 (2) ◽  
pp. 113-119 ◽  
Author(s):  
G. Keller ◽  
H. Schneiders ◽  
M. Schütz ◽  
A. Siehl ◽  
R. Stamm
Keyword(s):  
Indoor Radon ◽  
Radon Potential

scholarly journals A geogenic approach for the Radon monitoring and the exposure assessment at a regional scale: The results of the Rad_Campania project

2020 ◽  
Vol 52 ◽  
pp. 87-96 ◽  
Author(s):  
Simona Mancini ◽  
Michele Guida ◽  
Albina Cuomo ◽  
Domenico Guida
Keyword(s):  
Natural Waters ◽  
Structural Characteristics ◽  
Indoor Radon ◽  
Regional Scale ◽  
Field Measurements ◽  
Local Area ◽  
Radon Measurement ◽  
Campania Region ◽  
Radon Potential ◽  
Future Work

Abstract. The aim of this paper is to analyse and discuss the results of the regional program Rad Campania for the monitoring and the assessment of the radon risk. An innovative methodology, based on a geogenic approach, was developed, supported by a comprehensive campaign of radon measurement performed in soil gas, natural waters, drinking natural water samples and indoor air. Data refer to field measurements carried out in three provinces of the Campania Region (Italy): Salerno, Avellino and Benevento. The programme was completed with the main purpose to investigate the peculiarities of the radon issue at a provincial scale and to redact a map of the radon potential from soil as a tool for authorities to recognise critical areas (“Radon prone areas”) to monitor. Since the experience demonstrates that the high radon potential from soil is not indicative of high indoor radon concentrations, in this paper the authors have tried to identify a possible general correlation between geological features of the soil and structural characteristics of the buildings, elaborating more in depth all data collected. The main purpose is to categorize and analyse the performance of different kind of construction, typical of the local area, in order to develop, in a future work, an indicator of the building performances as a useful tool, for authorities, to recognise constructions potentially more exposed to high indoor radon activity concentrations. Results and perspectives have been discussed.

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