Ground based radon (222Rn) observations in Bucharest, Romania and their application to geophysics

Zoran, Maria A.; Savastru, Roxana; Săvăstru, D.

doi:10.1007/s10967-012-1761-7

Cited by 12 publications

(5 citation statements)

References 36 publications

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“…During periods of increasing atmospheric pressure, atmospheric air free of radon is forced into the ground, which may decrease the radon concentration in the upper soil layers and drive radon deeper into the soil [ Kovach , ; Kraner et al ., ; Clements and Wilkening , ; Lindmark and Rosen , ; Schumann et al ., ; Holford et al ., ]. The pattern of lowering pressure/rising radon and rising pressure/lowering radon has been observed by many researchers [ Kovach , ; Moses et al ., ; Pohl‐Rüling and Pohl , ; Schery et al ., ; Schumann et al ., ; Chen et al ., ; Pinault and Baubron , ; Eff‐Darwich et al ., ; Perrier et al ., ; Sundal et al ., ; Perrier and Richon , ; Zoran et al ., ]. Soil radon concentrations at different depths in response to atmospheric pressure changes have also been presented [ Kraner et al ., ; Schery et al ., ].…”

Section: Airflow Induced By Atmospheric Pressure Fluctuationsmentioning

confidence: 99%

Review on airflow in unsaturated zones induced by natural forcings

2013

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[1] Subsurface airflow in unsaturated zones induced by natural forcings is of importance in many environmental and engineering fields, such as environmental remediation, water infiltration and groundwater recharge, coastal soil aeration, mine and tunnel ventilation, and gas exchange between soil and atmosphere. This review synthesizes the published literature on subsurface airflow driven by natural forcings such as atmospheric pressure fluctuations, topographic effect, water table fluctuations, and water infiltration. The present state of knowledge concerning the mechanisms, analytical and numerical models, and environmental and engineering applications related to the naturally occurring airflow is discussed. Airflow induced by atmospheric pressure fluctuations is studied the most because of the applications to environmental remediation and transport of trace gases from soil to atmosphere, which are very important in understanding biogeochemical cycling and global change. Airflow induced by infiltration is also an extensively investigated topic because of its implications in rainfall infiltration and groundwater recharge. Airflow induced by water table fluctuations is important in coastal areas because it plays an important role in coastal environmental remediation and ecological systems. Airflow induced by topographic effect is studied the least. However, it has important applications in unsaturated zone gas transport and natural ventilation of mines and tunnels. Finally, the similarities and differences in the characteristics of the air pressure and airflow are compared and future research efforts are recommended.Citation: Kuang, X., J. J. Jiao, and H. Li (2013), Review on airflow in unsaturated zones induced by natural forcings, Water Resour.

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Section: Airflow Induced By Atmospheric Pressure Fluctuationsmentioning

confidence: 99%

Review on airflow in unsaturated zones induced by natural forcings

2013

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“…Radon can reach the atmosphere also from ground waters, natural gas, oceans and because of human’s activities. Due to its properties, atmospheric radon (outdoor radon), measured as radon concentration in air (Bq m −3 ), radon flux measured in radon exhaled per surface unit and per time unit (Bq m −2 s −1 ) and radon in soil gas (Bq m −3 ) are used in different scientific disciplines: (1) as a tracer gas for the estimation of greenhouse gases [ 1 , 2 , 3 , 4 , 5 , 6 ]; (2) to investigate mixing processes in the atmospheric boundary layer and the evolution of air pollution [ 7 , 8 , 9 , 10 , 11 , 12 ]; (3) as a tracer for dynamic processes such as: volcanic activity and earthquake prediction, caves air exchange, groundwater movements [ 13 , 14 , 15 , 16 , 17 , 18 , 19 , 20 , 21 ]; (4) as a tracer of Non-Aqueous Phase Liquids (NAPL) contamination [ 22 ]; (5) to estimate the health risk due to exposure to radon and its progeny [ 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Outdoor Radon as a Tool to Estimate Radon Priority Areas—A Literature Overview

Čeliković

Pantelić

Vukanac

et al. 2022

IJERPH

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Doses from the exposure to outdoor radon are typically an order of magnitude smaller than those from indoor radon, causing a greater interest on investigation of the latter for radiation protection issues. As a consequence, assessment of radon priority areas (RPA) is mainly based on indoor radon measurements. Outdoor radon measurements might be needed to guarantee a complete estimation of radiological risk and may help to improve the estimation of RPA. Therefore, authors have analysed the available literature on outdoor radon to give an overview of outdoor radon surveys and potential correlation with indoor radon and estimation of RPA. The review has shown that outdoor radon surveys were performed at much smaller scale compared to indoor radon. Only a few outdoor radon maps were produced, with a much smaller density, covering a larger area, and therefore putting doubt on the representativeness of this data. Due to a large variety of techniques used for outdoor radon measurements and requirement to have detectors with a high sensitivity and resistance to harsh environmental conditions, a standardised measurement protocol should be derived. This is no simple endeavour since there are more applications in different scientific disciplines for outdoor radon measurements compared to indoor radon.

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“…Another important characteristic of air pollutants particulate matter is its associated natural radioactivity, which refers to the presence of α- and β-emitting radioisotopes attached to particulate matter, which is mostly attributed to radon - 222 Rn progeny that is present in the atmosphere due to anthropogenic, terrestrial or cosmogenic sources ( Crova et al, 2021 ; Zoran et al, 2012 ; Blomberg et al, 2020 ; Hosoda et al, 2021 ; Penache and Zoran, 2019a ). Radon ( 222 Rn) is a noble gas emitted from the Earth's crust (soil, water, vegetation) that could decay into short-lived ( 218 Po, 214 Pb, 214 Bi, 214 Po) and long-lived radionuclides ( 210 Pb, 210 Po).…”

Section: Introductionmentioning

confidence: 99%