External exposure doses due to gamma emitting natural radionuclides in some Egyptian building materials

Moharram, B.M.; Suliman, M.N.; Zahran, N.F.; Shennawy, S.E.; Sayed, A.R. El

doi:10.1016/j.apradiso.2011.07.013

Cited by 33 publications

(20 citation statements)

References 20 publications

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“…The natural radioactivity level of building materials can vary considerably according to the geological locations and geochemical characteristics of those materials. Due to the increasing social concern, the natural radioactivity level of building materials has been reported in many countries [ [12] , [13] , [14] , [15] , [16] , [17] , [18] , [19] , [20] , [21] , [22] ]. The objectives of the study are to evaluate the activity concentration of natural radioactivity content in the commonly used building materials such as tiles of various types and sizes in Nigeria and to estimate the radiation hazards associated to individuals by using radium equivalent activity, external and internal hazard indexes, indoor air absorbed dose rate and annual effective dose rate.…”

Section: Methods Detailsmentioning

confidence: 99%

Assessment of natural radioactivity in various commercial tiles used for building purposes in Nigeria

et al. 2018

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Section: Methods Detailsmentioning

confidence: 99%

Assessment of natural radioactivity in various commercial tiles used for building purposes in Nigeria

et al. 2018

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“…The natural radioactivity levels of building materials have been studied in many regions [9,[11][12][13][14][15][16][17][18][19][20], [3,[21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Assessment of natural radioactivity in major building materials of Xiangyang, China

Feng¹,

Li²

2014

Radiochimica Acta

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The activity concentrations of 40 K, 226 Ra and 232 Th in the commonly used building materials collected from Xiangyang were measured using NaI (Tl) gamma spectrometer. The radioactivity values of 40 K, 226 Ra and 232 Th in the studied samples ranged from 130.5 to 1006.3, 8.4 to 164.0, and 8.7 to 145.6 Bq kg −1 , respectively. The concentrations of these radionuclides have been compared with the typical published world values. Radium equivalent activity, external and internal hazard indexes, external and internal exposure indexes, indoor air absorbed dose rate and annual effective dose rate have been calculated to assess the potential radiological hazard associated with natural radionuclides in the studied materials.The calculated values of all the assessed indices in the analyzed building materials except for fly ash are below the internationally accepted limits indicating that these building materials can be safely used in dwellings construction and do not lead to any significant radiation exposure to occupants. Nevertheless, the annual effective dose rate values of all fly ash samples, external and internal hazard indexes values in most fly ash samples exceed the recommended values. It is, therefore, desirable to regularly monitor the natural radioactivity level of the building materials products made from fly ash.

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“…115 from the IAEA, the use of building materials containing enhanced concentrations of NORM should be controlled and restricted via the application of the radiation safety standards. Several publications address measuring low levels of naturally occurring radioactive isotopes in marble and granite rocks [22][23][24][25][26][27]8].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of radionuclide concentrations and associated radiological hazard in marble indices and granite used as building materials in Al-Madinah Al-Munawarah

Mohamed

Algamdi

Al-shamani

2016

Journal of Taibah University for Science

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Sixty samples of different marble and granite tiles used as building materials, from local and foreign origins, were collected from different factories in the Al-Madinah Al-Munawarah region of Saudi Arabia. Natural radioactivity of the U-Th series and 40 K in the samples were measured using an HPGE detector to conduct gamma-ray spectrometry. From the measured ␥-ray spectra, the activity concentrations for different marble samples of Turkish, Egyptian, and Omani origin were 232 Th (0.10 ± 0.07, 0.9 ± 0.09, 0.31 ± 0.06 Bq/kg), 226 Ra (5.7 ± 0.3, 7.3 ± 0.40, 2.0 ± 0.1 Bq/kg), and 40 K (0.9 ± 0.2, 0.96 ± 0.1, 0.8 ± 0.09 Bq/kg),

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External exposure doses due to gamma emitting natural radionuclides in some Egyptian building materials

Cited by 33 publications

References 20 publications

Assessment of natural radioactivity in various commercial tiles used for building purposes in Nigeria

Assessment of natural radioactivity in various commercial tiles used for building purposes in Nigeria

Assessment of natural radioactivity in major building materials of Xiangyang, China

Evaluation of radionuclide concentrations and associated radiological hazard in marble indices and granite used as building materials in Al-Madinah Al-Munawarah

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