Radon concentration levels in dry CO2 emanations from Harghita Băi, Romania, used for curative purposes

Néda, Tamás; Szakács, Alexandru; Mócsy, Ildikó; Cosma, C.

doi:10.1007/s10967-007-7169-0

Cited by 9 publications

(5 citation statements)

References 11 publications

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“…The values of the radon and thoron concentrations were on the order of kBq m −3 units. The values obtained are consistent, in terms of the position of the maxima, with those of previous measurements performed in the same area for experimental reasons (Néda et al. 2008b).…”

Section: Resultssupporting

confidence: 91%

“…The field measurements for radon and thoron, near the mofettes and the mineral water springs at Harghita Bai, were performed in June 2009, when relatively dry conditions prevailed in the area. The aim of the measurements was the identification of the fault zone, and the reproduction of previous measurements, performed in the same season three years earlier (Néda et al. 2008b).…”

Section: Methodology and Measurementsmentioning

confidence: 99%

“…Therefore, a more accurate radon risk zonation can be achieved. Thoron studies combined with other geological investigations help to precisely determine the source and the origin of radon in the crust (Néda et al. 2008a,b; Szakács & Néda 2009).…”

Section: Objectivesmentioning

confidence: 99%

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Soil radon and thoron studies near the mofettes at Harghita Bai (Romania) and their relation to the field location of fault zones

Papp¹,

Szakács²,

Néda³

et al. 2010

Geofluids

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In the aftermath of postvolcanic activity, dry gases, containing mainly CO 2 , bring along radioactive gases such as radon ( 222 Rn) and thoron ( 220 Rn) that migrate together to the surface. Tectonic faults facilitate the upward migration of these gases. The study described here is based on measurements of radon and thoron activity concentrations performed around the mofettes and mineral springs at Harghita Bai, Harghita Mts. (part of the Neogene Volcanic region of the Eastern Carpathians, Romania). The aim of the study was to identify the location and the direction of the fault system that controls the occurrence of the two mofettes, as well as the mineral springs in the resort by means of systematic measurements of soil radon and thoron activity concentrations. During fieldwork, the existence of the presumed fault system across two different profiles, normal to assumed fault directions, was examined. We sought to identify the local fault hypothetically traced across the two mofettes directed at N 50°W. We also considered the major fault system connecting mofettes and mineral springs, whose direction is N 5°E. For radon and thoron concentration determinations in soil gas, we used a main measurement method (a LUK3C scintillation detector with Lucas cells). Results showed normal distributions for the activity concentrations for both radon and thoron, with a maximum value in both cases. The concentrations for radon and thoron were in the range of several kBq m )3 to tens of kBq m )3 . The distributions are consistent with the hypothesis that the fault lines cross at the point corresponding to maximum values of the radon and thoron concentrations. From the results it is also clear that high precision thoron concentration determinations provided a more accurate location for this type of geological environment than for radon alone, because of its shorter halflife and its shorter migration length.

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Section: Resultssupporting

confidence: 91%

Section: Methodology and Measurementsmentioning

confidence: 99%

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Soil radon and thoron studies near the mofettes at Harghita Bai (Romania) and their relation to the field location of fault zones

Papp¹,

Szakács²,

Néda³

et al. 2010

Geofluids

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“…Recent studies in medical field, as Śmiełowska et al [ 71 ] highlighted, have demonstrated that (in rare cases) radon is used for punctual medical treatments for cancer [ 144 ] and also to treat other diseases, such as radon baths to prevent autoimmune diseases such as arthritis, endocrine disorders, etc. [ 145 ]. Starting from this scenario, radon has to be considered a significant xenobiotic that might affect the IAQ.…”

Section: Human Presence and Medical Activitiesmentioning

confidence: 99%

Indoor Air Quality in Inpatient Environments: A Systematic Review on Factors that Influence Chemical Pollution in Inpatient Wards

Gola

Settimo

Capolongo

2019

Journal of Healthcare Engineering

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Introduction. Indoor air quality is one the main issues in which governments are focusing. In healing spaces, several research studies are reporting a growing number of data analysis and research works in order to guarantee and prevent health of users and workers. Currently the main investigations are about biological and physical risks; otherwise chemical ones are less investigated. Several countries are carrying out indoor air quality monitoring in those professional workplaces in which chemicals are used but also in some typically indoor (generic) spaces for the building hygiene assessment. The indoor air is affected by several factors that currently are analyzed punctually, without a whole scenario of all the variable performances. The authors have done a systematic review on the current state of the art and knowledge related to chemical pollution in healing spaces and the emerging strategies, supported by scientific literature, for healthy inpatient rooms and their indoor air. Methodology. The systematic review has been done through the analysis of papers from SCOPUS, DOAJ, and PubMed databases. The survey sample considered 483 scientific articles, between 1989 and 2017, and starting the systematic reading and analysis of the abstracts, only 187 scientific papers were selected, and only 96 were accessible. Discussion. Since scientific literature reports very different outputs and results, the resulting work from the survey is divided into specific fields of interest related to construction and finishing materials, installations, components, ventilation systems, processes, etc. Starting from the systematic reading, the paper classifies the factors of indoor air in four macroareas: outdoor air and microclimatic factors (temperature, relative humidity, air velocity, air change, etc.); management activities (management and maintenance activities, ventilation systems, HVAC, cleaning and disinfectant activities, etc.); design factors (room dimensions, furniture, finishing materials, etc.); and human presence and medical activities (users’ presence, their health status, and medical activities carried out in inpatient rooms). Conclusion. The systematic review gives rise to a broad scenario on the existing knowledge regarding the indoor air pollution, design, and management strategies for healthy spaces and several emerging topics. Although the aim of the investigation is strictly related to chemical pollution, several considerations from the biological point of view have been listed. The systematic review, supported by the existing scientific literature, becomes a starting point for considering the importance of the topic and to stimulate the knowledge around this field of interest for improving studies, analysis, and simulations.

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“…It occurs widely in the environment, especially in rocks and soils with varying concentration (depending on geographical location) and in building materials manufactured from these (Groves-Kirkby et al 2016 ). In addition, radon is sometimes used in hospitals (as a special health programme) to treat cancer by the enhancement of the immune system and tumour suppression genes such as p53 (Zdrojewicz and Strzelczyk 2006 ) and also to treat other diseases (radon baths to prevent auto-immune diseases such as arthritis, endocrine disorders) (Neda et al 2008 ). On the other hand, the epidemiological studies have shown a clear relationship between breathing high concentrations of radon and incidence of lung cancer (Field et al 2002 ).…”

Section: Air Quality In Various Types Of Public Placesmentioning

confidence: 99%

Indoor air quality in public utility environments—a review

Śmiełowska

Marć

Zabiegała

2017

Environ Sci Pollut Res

127

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Indoor air quality has been the object of interest for scientists and specialists from the fields of science such as chemistry, medicine and ventilation system design. This results from a considerable number of potential factors, which may influence the quality of the broadly understood indoor air in a negative way. Poor quality of indoor air in various types of public utility buildings may significantly affect an increase in the incidence of various types of civilisation diseases. This paper presents information about a broad spectrum of chemical compounds that were identified and determined in the indoor environment of various types of public utility rooms such as churches, museums, libraries, temples and hospitals. An analysis of literature data allowed for identification of the most important transport paths of chemical compounds that significantly influence the quality of the indoor environment and thus the comfort of living and the health of persons staying in it.Electronic supplementary materialThe online version of this article (doi:10.1007/s11356-017-8567-7) contains supplementary material, which is available to authorized users.

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Radon concentration levels in dry CO2 emanations from Harghita Băi, Romania, used for curative purposes

Cited by 9 publications

References 11 publications

Soil radon and thoron studies near the mofettes at Harghita Bai (Romania) and their relation to the field location of fault zones

Soil radon and thoron studies near the mofettes at Harghita Bai (Romania) and their relation to the field location of fault zones

Indoor Air Quality in Inpatient Environments: A Systematic Review on Factors that Influence Chemical Pollution in Inpatient Wards

Indoor air quality in public utility environments—a review

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