Radon in spring waters in the south of Catalonia

Fonollosa, E.; Peñalver, A.; Borrull, Francesc; Aguilar, Carme

doi:10.1016/j.jenvrad.2015.10.019

Cited by 78 publications

(36 citation statements)

References 31 publications

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“…The high variability of the Rn-222 activity concentrations can be explained by their different origins and the lithology of the aquifer host rocks (LLERENA et al, 2013). Larger values are found in groundwater, based on the geology of the studied site (FONOLLOSA et al, 2016). If we compare the results of this work with those from survey data of many other countries and different sources, such as wells, non-bottled mineral water, springs, and underground, surface, and drinking water, the Rn-222 activity concentrations found in the Matinha stream present no anomalous readings.…”

Section: Discussionmentioning

confidence: 92%

Investigation of the activity of Rn-222 along a small stream in the Representative Basin of Juatuba - MG

Ferreira

Chagas

Moreira

et al. 2018

RBRH

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For thousands of years, water has been the focus of experimentation toward solving the challenges associated with human water supply, navigation, irrigation, and sanitation. The use of tracers to study water resources is an efficient approach that can facilitate the modeling of many hydrological scenarios. The goal of this paper is to show results of research that tracked the presence of Rn-222, a natural tracer, in the surface waters of a small watercourse in southeastern part of Brazil. RAD 7, which is an electronic and portable radon detector, was the main instrument used in this survey. We analyzed 117 water samples and converted the radon activity results to effective radiation doses with respect to the hypothetical human consumption of these waters. We also analyzed the sediments of the watercourse. The obtained data showed that the radon activity in the studied waters varies between 0.52-76.96 Bq/m3. We determined the effective dose of all samples to be less than 1 mSv y−1, and its consumption to present no risk to human health. The existence of connections between surface and subsurface waters in the stream is possible, and radon peaks may indicate the existence of discharge zones into the surface water body.

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Section: Discussionmentioning

confidence: 92%

Investigation of the activity of Rn-222 along a small stream in the Representative Basin of Juatuba - MG

Ferreira

Chagas

Moreira

et al. 2018

RBRH

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“…Nevinsky, Tsvetkova and Nevinskaya () reported radon levels of well waters from Western Caucasus (Russia) as range from 0.4 to 86.7 Bq/L. In Catalonia spring waters, radon concentration levels were found between 1.4 and 104.9 Bq/L (Fonollosa, Penalver, Borrull, & Aguilar, ). Generally, radon concentration levels in well water of Bodrum Peninsula are higher than the levels given by literature.…”

Section: Resultsmentioning

confidence: 99%

Ground water radon anomalies in Bodrum Peninsula

et al. 2018

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Bodrum Peninsula is located between Hellenic Trench in the west and Gökova Fault Zone in the east which is affected by hundreds of earthquakes every year. Because of its active environment is allowed to monitor tracers/precursors continuously to analyse natural processes. This study focused on the determination of ground water radon (222Rn) concentrations in the Bodrum Peninsula in terms of seismic activities. Radon levels of ten ground water wells were measured periodically throughout the peninsula and these wells were divided into two groups according to the number of earthquakes they are exposed. Radon variations in second group stations are fairly significant as a result of high number of earthquakes. In these stations, radon continuously increased before the seismic storm and then decreased step by step. The results indicated that radon variations in ground waters of Bodrum Peninsula can be a good indicator for seismic storms instead of one specific event.

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“…Radon ( 222 Rn) is an endogenous natural radioactive noble gas, and is a product of the decay chain of Uranium ( 238 U). 222 Rn (half-life of 3.82 days) is the most commonly occurring radon isotope in nature, produced by α-decay from Radium ( 226 Ra), it is soluble in water, and its behavior and concentration in groundwater is strongly influenced by the geological nature of substratum, and by the occurrence of Rn parent elements [1,2]. Moreover, the concentration of Rn in soil depends on chemical, physical, and geological factors, such as geochemical mobility of Rn precursors, grain size, distribution of sediments, porosity, permeability, and seasonal variations, including temperature and atmospheric pressure [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Diurnal and Semidiurnal Cyclicity of Radon (222Rn) in Groundwater, Giardino Spring, Central Apennines, Italy

Barberio

Gori

Barbieri

et al. 2018

Water

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Understanding natural variations of Rn (222Rn) concentrations is the fundamental prerequisite of using this radioactive gas as a tracer, or even precursor, of natural processes, including earthquakes. In this work, Rn concentrations in groundwater were continuously measured over a seven-month period, during 2017, in the Giardino Spring, Italy, together with groundwater levels in a nearby well installed into a fractured regional aquifer. Data were processed to reduce noise, and then analyzed to produce the Fourier spectra of Rn concentrations and groundwater levels. These spectra were compared with the spectrum of tidal forces. Results showed that diurnal and semidiurnal cycles of Rn concentrations, and filtered oscillations of groundwater levels, in the nearby well, are correlated with solar and luni-solar components of tidal forces, and suggested no correlation with the principal lunar components. Therefore, influencing factors linked to solar cycles, such as daily oscillations of temperature and atmospheric pressure, and related rock deformations, may have played a role in Rn concentrations and groundwater levels. An open question remains regarding the correlation, which is documented elsewhere, of Rn concentrations and groundwater levels with the lunar components of the solid Earth tides.

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Radon in spring waters in the south of Catalonia

Cited by 78 publications

References 31 publications

Investigation of the activity of Rn-222 along a small stream in the Representative Basin of Juatuba - MG

Investigation of the activity of Rn-222 along a small stream in the Representative Basin of Juatuba - MG

Ground water radon anomalies in Bodrum Peninsula

Diurnal and Semidiurnal Cyclicity of Radon (222Rn) in Groundwater, Giardino Spring, Central Apennines, Italy

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