Exposure to indoor radon and natural gamma radiation in public workplaces in north-western Greece

Papachristodoulou, C.; Patiris, D. L.; Ioannides, K. G.

doi:10.1016/j.radmeas.2010.02.018

Cited by 26 publications

(14 citation statements)

References 37 publications

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“…The underlying bedrock of the University of Ioannina Campus consists mainly of limestone, while the surface soil, classified as a sandy-loam, has a 52 Bq kg −1 mean 226 Ra specific activity (Ioannides et al 2009;Papachristodoulou et al 2010). Typically, the 226 Ra concentration of the clay bricks and the concrete used for the construction of buildings on campus is about 70 and 40 Bq kg −1 , respectively.…”

Section: Resultsmentioning

confidence: 99%

Measurement Uncertainties in Whole Body Counting and Radon Progeny

Valakis

Pallada²,

Kalef-Ezra³

2014

Health Physics

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Measurement uncertainty is an important quality index in gamma spectrometry related to the level of bias and precision involved in the measuring procedure. Quality control measurements during the commissioning of a 16-input whole body counter showed substantial deviations between the experimentally determined precision and the theoretical estimation, indicating either equipment malfunction or lack of reproducibility of the experimental setup. In this study, the role of the magnitude and variability of airborne background radiation present in the counting room and the human body in the deterioration of the precision of counters employing NaI(Tl) detectors was investigated. Correction methods and actions based on case-specific background features were developed and applied. The experimental observations were benchmarked using a mathematical model of the counter. The efficacy of the developed methods was tested by measurements, and updated precision values were obtained. Quasi-equilibrium between the gamma-emitters Bi and Pb in the counting room and the human body is a prerequisite for accurate direct low-level radioactivity measurements in the human body.

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Section: Resultsmentioning

confidence: 99%

Measurement Uncertainties in Whole Body Counting and Radon Progeny

Valakis

Pallada²,

Kalef-Ezra³

2014

Health Physics

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“…Así, tras los estudios anteriormente citados en lugares de trabajo en España y la publicación de otros trabajos con los mismos métodos y en entornos similares (24), se cree conveniente el análisis pormenorizado de la influencia del gas radón en un emplazamiento tan significativo como es la Universidad de Alicante: un lugar donde multitud de usuarios pasan la mayor parte de su tiempo de estudio o de trabajo durante el día y, por tanto, un lugar donde el tiempo de exposición a este gas puede llegar a ser bastante significativo.…”

Section: Campus De La Universidad De Alicanteunclassified

Medidas de radón en espacios de trabajo subterráneos del Campus de la Universidad de Alicante

Piedecausa¹

2013

Inf. constr.

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“…An effective radiation dose was defined in compliance with UNSCEAR guidelines (2000) taking into account a dose coming from 222 Rn and its progeny received through inhalation and a dose dissolved in blood as a result of the absorption of 222 Rn and its progeny (Dueñas et al, 2011;Gillmore et al, 2001;K av asi et al, 2010;Papachristodoulou et al, 2010;Sainz et al, 2007). The exposure assessment was based on estimated levels of the effective radiation dose that could be received by any member of the public or an employee staying inside the facility for a particular period of time.…”

Section: Effective Radiation Dosementioning

confidence: 99%

“…1.1. Ionizing radiation exposure from radon in workplaces coefficient), exposure time [h] and coefficient F [e] of radioactive equilibrium between 222 Rn and its shortelived progeny (UNSCEAR, 2000;Gillmore, Phillips, Denman, Sperrin, & Pearce, 2001;K av asi et al, 2009, 2010Sainz, Quind os, Fuente, Nicol as, & Quind os, 2007;Papachristodoulou, Patiris, & Ioannides, 2010;Dueñas, Fern andez, Cañete, P erez, & Gordo, 2011).…”

Section: Introductionmentioning

confidence: 99%

Estimation of radon risk exposure in selected underground workplaces in the Sudetes (southern Poland)

Fijałkowska-Lichwa

2015

Journal of Radiation Research and Applied Sciences

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The risk of exposure to increased ionizing radiation from radon was assessed for two groups of people who spend time, either for work (employees serving these visitors, mainly guides) or leisure (members of the public e visitors), in underground tourist facilities: Bear Cave in Kletno, the Gold Mine complex in Złoty Stok and the Underground Educational Tourist Route in the Old Uranium Mine in Kletno. These facilities had been chosen due to their location within the Sudetes, the most radoneprone area in Poland, and because of continuous radon activity concentration measurements conducted there since May 2008 to the end of January 2012. The selected facilities also meet the criteria for a radiation hazard workplace set by Polish law. The annual limit of the effective ionizing radiation dose allowed for employees in Poland, which is 20 mSv/year, is exceeded for guides working in all the facilities. Also, according to Polish radiological protection regulations, their working conditions qualify them as exposed workers of category A or B. After a month's work, guides receive the annual effective radiation dose allowed for category B workers (>1 mSv/year) and after a few months e an annual effective radiation dose allowed for people employed in category A conditions (>6 mSv/year). Members of the public spending no longer than one hour inside each facility are at risk of receiving small effective radiation doses, ranging from 0.001 to 0.2 mSv/h.

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Exposure to indoor radon and natural gamma radiation in public workplaces in north-western Greece

Cited by 26 publications

References 37 publications

Measurement Uncertainties in Whole Body Counting and Radon Progeny

Measurement Uncertainties in Whole Body Counting and Radon Progeny

Medidas de radón en espacios de trabajo subterráneos del Campus de la Universidad de Alicante

Estimation of radon risk exposure in selected underground workplaces in the Sudetes (southern Poland)

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