Radon concentration in air and external gamma dose rate: is there a correlation?

Yoshimura, Elisabeth Mateus; Anjos, R. M.; Umisedo, Nancy K.; Velasco, H.; Valladares, D.L.

doi:10.1007/s10967-015-4242-y

Cited by 3 publications

(2 citation statements)

References 16 publications

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“…Al though the ex is tence of cor re la tions be tween ex per i men tally de ter mined gamma dose rate and radon con cen tra tion in in door air of res i dences is very un cer tain [13], it was in ter est ing to know and an a lyze dose rates of gamma ra di a tion in the stud ied multi-story build ings.…”

Section: Re Sults and Discussionmentioning

confidence: 99%

Radon concentrations in multi-story buildings in Montenegro

Vukotic

Zekic²,

Antovic

et al. 2019

NUCL TECH RAD PROT

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Change of ra don con cen tra tions in dwell ings with floor level was stud ied in six multi-story build ings, in four towns of Montenegro with dif fer ent cli mate con di tions. The an nual av erage ra don ac tiv ity con cen tra tions in 35 dwell ings are found to be very low, mostly at a level of 20-30 Bqm-3. Ab sorbed gamma dose rates in these dwell ings are in the range of 14-58 nGyh-1. The low ra don con cen tra tions are a con se quence of a good tight ness of the struc tures in con tact with the ground and a small con tri bu tion of build ing ma te ri als to ra don in doors. A clear gen eral trend of changes in ra don con cen tra tions with floor level is not ob served. In most of the dwell ings on dif fer ent floors in the multi-story build ing ra don con cen tra tion varies very lit tle, mostly within mea sure ment er ror. A small de crease in ra don con cen tra tion is noted be tween the two or three floors clos est to the ground, but only in some of the build ings. There fore, a de crease of in door ra don con cen tra tion with floor level can not be con sid ered as a gen eral char ac ter is tic of multi-story build ings. Al though the sea sonal ra don vari a tions have not been in the fo cus of this study, it was found that the av er age ra don ac tiv ity con cen tra tions in dwell ings of the multi-story build ings are higher in warmer than in cooler half-year pe riod, what is con trary to the gen eral rule for homes in the world and in Montenegro as well.

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Section: Re Sults and Discussionmentioning

confidence: 99%

Radon concentrations in multi-story buildings in Montenegro

Vukotic

Zekic²,

Antovic

et al. 2019

NUCL TECH RAD PROT

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“…These radionuclides pose radiological risks externally due to their gamma-ray emissions and internally due to 222 Rn, 220 Rn and their decay products that emit alpha particles [3,4]. The radioactivity of soils could be associated with the absorbed dose rates in air that can be easily and directly measured [5]. Uranium ores and related materials contain a variety of natural radionuclides and non-radionuclides, and processing such materials can further increase the concentrations of natural radionuclides that may lead to increased radiological exposure to the humans [6,7].…”

Section: Introductionmentioning

confidence: 99%

Technologically elevated natural radioactivity and assessment of dose to workers around a granitic uranium deposit area, China

Wang

Liu

Chen

et al. 2016

J Radioanal Nucl Chem

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Gamma dose rates in a uranium site in Guangdong, China were measured based on different functioning areas (mining area, milling area, tailings area and downstream area); four representative soil profiles were measured with HP Ge gamma spectrometry. The gamma dose rates as well as annual effective dose overall exceeded the relevant values reported from other countries. Both the external and the internal hazard index overwhelmingly exceeded the recommended value. Some areas were heavily polluted with technologically elevated concentrations of 238 U and 226 Ra, while others were observed with extremely high background level of natural radioactivity, mainly stemming from granitic lithology.

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Variation of indoor radon concentration and ambient dose equivalent rate in different outdoor and indoor environments

Stojanovska

Boev

Žunić

et al. 2016

Radiat Environ Biophys

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Subject of this study is an investigation of the variations of indoor radon concentration and ambient dose equivalent rate in outdoor and indoor environments of 40 dwellings, 31 elementary schools and five kindergartens. The buildings are located in three municipalities of two, geologically different, areas of the Republic of Macedonia. Indoor radon concentrations were measured by nuclear track detectors, deployed in the most occupied room of the building, between June 2013 and May 2014. During the deploying campaign, indoor and outdoor ambient dose equivalent rates were measured simultaneously at the same location. It appeared that the measured values varied from 22 to 990 Bq/m(3) for indoor radon concentrations, from 50 to 195 nSv/h for outdoor ambient dose equivalent rates, and from 38 to 184 nSv/h for indoor ambient dose equivalent rates. The geometric mean value of indoor to outdoor ambient dose equivalent rates was found to be 0.88, i.e. the outdoor ambient dose equivalent rates were on average higher than the indoor ambient dose equivalent rates. All measured can reasonably well be described by log-normal distributions. A detailed statistical analysis of factors which influence the measured quantities is reported.

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Radon concentration in air and external gamma dose rate: is there a correlation?

Cited by 3 publications

References 16 publications

Radon concentrations in multi-story buildings in Montenegro

Radon concentrations in multi-story buildings in Montenegro

Technologically elevated natural radioactivity and assessment of dose to workers around a granitic uranium deposit area, China

Variation of indoor radon concentration and ambient dose equivalent rate in different outdoor and indoor environments

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