A study on natural radioactivity and radon exhalation rate in building materials containing norm residues: preliminary results

Leonardi, Federica; Bonczyk, Michał; Nuccetelli, Cristina; Wysocka, M.; Michalik, B.; Ampollini, M; Tonnarini, S.; Rubin, Jan Antoni; Niedbalska, Katarzyna; Trevisi, Rosabianca

doi:10.1016/j.conbuildmat.2018.03.254

Cited by 25 publications

(16 citation statements)

References 19 publications

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“…The volume and porosity were estimated for all samples according to ISRM [17]. Each sample was first polished and then enclosed in a 10.4-liter closed chamber, together with a real-time radon-monitoring instrument (Radex MR-107), which measures the radon activity growth over time [5,18,19]. According to Leonardi et al…”

Section: Measurement Of Radon Exhalation Ratesmentioning

confidence: 99%

“…where λ e is the effective radon decay constant (h −1 ), which accounts for the radon decay, the leak rate of the system and the back diffusion; C 0 and C m are the radon activity concentration (Bq m −3 ) at time = 0 and its maximum value respectively [18]. As shown in Fig.…”

Section: Measurement Of Radon Exhalation Ratesmentioning

confidence: 99%

“…where V eff is the effective volume of the calibration container (m 3 ) and S is the sample's total surface area (m 2 ) [18]. The radon exhalation rates were determined for all samples under exam, according to the procedure above described.…”

Section: Measurement Of Radon Exhalation Ratesmentioning

confidence: 99%

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Natural radioactivity and radon exhalation rate of Sardinian dimension stones

Dentoni

Pelo

Aghdam

et al. 2020

Construction and Building Materials

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Due to the ever-growing public concern about radon risk arising from building materials, the radon exhalation rates and the natural radioactivity of eighteen dimension stones mostly used in Sardinia and widely exported worldwide have been estimated by means of laboratory tests. Some of the quarrying companies that operate within the Sardinian territory provided the samples to be tested, which include twelve granitoids, four pyroclastic rocks and two basalts. The Activity Concentration Index (I ɤ ), the External Radiation Hazard Index (H ex ) and the Radium equivalent activity (Ra eq ) were calculated for each rock sample under investigation, based on the estimated values of 222 Rn exhalation rate and 226 Ra, 232 Th and 40 K radioactivity concentration. A poor correlation between radon release rates and 226 Ra radioactivity concentrations was found. The contribution to indoor radon accumulation was also simulated for the stone with the highest 222 Rn exhalation rate and the resulting concentration compared with the limit value establish by the 2013/59/Euratom Directive. These findings can be extended to rocks formed in similar geodynamic settings that are likely to produce igneous rocks with similar petrographic and geochemical features.

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Section: Measurement Of Radon Exhalation Ratesmentioning

confidence: 99%

Section: Measurement Of Radon Exhalation Ratesmentioning

confidence: 99%

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Natural radioactivity and radon exhalation rate of Sardinian dimension stones

Dentoni

Pelo

Aghdam

et al. 2020

Construction and Building Materials

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“…Therefore, determination of natural radioactivity levels of building materials is very important in the evaluation of radiological hazards arising from indoor external and internal exposures to individuals and preparation standards and national guidelines of these materials in the light of international recommendations (Aykamış et al 2013;Ravisankar et al 2016). Recently, due to the increasing social anxiety, many studies on the measurement of natural radioactivity of different building materials and the assessment of the associated radiological risks on human health were published in the literature (Kumara et al 2018;Al-Hubail and Al-Azmi 2018;Otoo et al 2018;Leonardi et al 2018;De With et al 2018;Abdullahi et al 2019;Al-Sewaidan 2019;Nuccetelli et al 2020;La Verde et al 2020;Orosun et al 2020;Ghias et al 2021). Up to now, several studies related to the determination of the activity concentrations of 232 Th, 226 Ra, and 40 K in some building materials used in Turkey and assessment of the radiological health hazards associated with these materials (Erees et al 2006;Turhan et al 2008;Turhan 2009;Mavi and Akkurt 2010;Turhan 2010;Turhan et al 2011;Turhan and Varinlioğlu 2012;Baykara et al 2012;Solak et al 2014;Hatungimana et al 2020).…”

Section: Introductionmentioning

confidence: 99%

Evaluation of natural radioactivity levels and potential radiological hazards of common building materials utilized in Mediterranean region, Turkey

Turhan

Kurnaz

Karataşlı

2021

Environ Sci Pollut Res

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Radiometric measurement of building materials is very important to assess the internal and external exposure caused by the ionizing radiation emitted from terrestrial radionuclides in building materials. The activity concentrations of 226 Ra, 232 Th, and 40 K in fifty-eight samples of fifteen different structural and covering building materials commonly used in Osmaniye province located in the Mediterranean region of Turkey were measured by using gamma-ray spectroscopy. The activity concentrations of 226 Ra, 232 Th and 40 K varied from 2.5 ± 0.1 (marble) to 145.7 ± 4.4 (clay brick), 1.3 ± 0.1 (marble) to 154.3 ± 4.1 (marble) and 8.6 ± 0.2 (sand) to 1044.1 ± 70.3 (granite), respectively. Radiological parameters (activity concentration index, alpha index, indoor absorbed gamma dose rate and the corresponding annual effective dose rate, and excess lifetime cancer risk) were estimated to evaluate the health hazards associated with these building materials. Since the estimated values of these parameters are within the recommended safety limits or criteria values, the use of the studied building materials in the construction of dwellings can be considered to be safe for the residents of the region.

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“…Studies on the radioactivity of building materials and waste used in their production are becoming more and more common [27][28][29][30]. So far, there is not a great deal of data about radon exhalation rate in building materials containing NORM residues [30]. For example, in [31] there are only 1100 pieces of data from 14 European countries on radon emanation/exhalation rate.…”

Section: Introductionmentioning

confidence: 99%

Holistic Analysis of Waste Copper Slag Based Concrete by Means of EIPI Method

et al. 2019

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The aim of the research is a comprehensive evaluation of concrete using the EIPI method. In the evaluation the compressive strength of concrete and its durability properties represented by sorptivity and air permeability are taken into account. Since waste copper slag with increased natural radioactivity is used in the assessed concrete, additional evaluation is carried out taking into account the influence of natural radioactivity within the performance index. Additionally, the reference concrete, which is made without the use of waste copper slag, is evaluated for comparative purposes. In order to make the evaluation as comprehensive as possible, the concrete made with the use of three types of cement is subjected to CEM I, CEM II and CEM III assessments. If natural radioactivity is not taken into account in the evaluation, the best result of the most favourable value of Gross Ecological and Performance Indicator (GEPI) is obtained by the concrete made with waste copper slag, and if radioactivity is considered, the most favourable value of GEPI is obtained with concrete without addition of the waste. The results show that in both approaches the best result is achieved by concrete with CEM III cement. It follows from the above that although natural radioactivity has a significant impact on the EIPI evaluation result, the decisive factor is still the type of cement.

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A study on natural radioactivity and radon exhalation rate in building materials containing norm residues: preliminary results

Cited by 25 publications

References 19 publications

Natural radioactivity and radon exhalation rate of Sardinian dimension stones

Natural radioactivity and radon exhalation rate of Sardinian dimension stones

Evaluation of natural radioactivity levels and potential radiological hazards of common building materials utilized in Mediterranean region, Turkey

Holistic Analysis of Waste Copper Slag Based Concrete by Means of EIPI Method

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