Natural radioactivity levels in building materials used in Egypt

Ahmad, Fawzia

doi:10.1080/10420150600968246

Cited by 10 publications

(5 citation statements)

References 13 publications

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“…All these studies indicate that higher lung cancer rates occur in people exposed to higher levels of radon gas. Table 1 presents typical values of radionuclides in constructing common building materials used in different countries of the world [28][29][30][31][32][33]. Whereas, Table 2 represents the natural radionuclide concentration of building materials and their radiological parameters in India [17,34].…”

Section: Resultsmentioning

confidence: 99%

Review studies of the radioactivity of building materials

2024

resmil

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Different types of houses where we stayed are radioactive due to background radiation emitted from the earth's crust and houses making materials like cement, bricks, and sand. The human body gets maximum exposure to natural radiation (about 80%) indoors compare with outdoors. This background radiation dose depends on the types of houses and materials used. The level of natural radiation differs from place to place around the world as the concentration of materials in the earth's crust varies. The main radionuclides in building materials are mainly from 238 U and 232 Th decay series and 40 K. The types of construction materials used in building houses can be affecting the dose rate of natural background radiations. The study of radioactivity in building materials is important to monitor the levels of radiation indoors to which human is exposed directly or indirectly. Several studies have been done very recently and different observations were reported. In this article, a review of studies of radioactivity in building materials was carried out.

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Section: Resultsmentioning

confidence: 99%

Review studies of the radioactivity of building materials

2024

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“…The activity concentration of natural radionuclides in construction materials has been estimated in various countries and areas of the world such as Australia,[14] Bangladesh,[15] Pakistan,[1617] Tanzania,[18] Eastern Europe,[19] Syria,[20] Kuwait,[21] China,[22] Egypt,[23242526] and Cyprus. [27]…”

Section: Discussionmentioning

confidence: 99%

A review on natural background radiation

2013

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The world is naturally radioactive and approximately 82% of human-absorbed radiation doses, which are out of control, arise from natural sources such as cosmic, terrestrial, and exposure from inhalation or intake radiation sources. In recent years, several international studies have been carried out, which have reported different values regarding the effect of background radiation on human health. Gamma radiation emitted from natural sources (background radiation) is largely due to primordial radionuclides, mainly 232Th and 238U series, and their decay products, as well as 40K, which exist at trace levels in the earth's crust. Their concentrations in soil, sands, and rocks depend on the local geology of each region in the world. Naturally occurring radioactive materials generally contain terrestrial-origin radionuclides, left over since the creation of the earth. In addition, the existence of some springs and quarries increases the dose rate of background radiation in some regions that are known as high level background radiation regions. The type of building materials used in houses can also affect the dose rate of background radiations. The present review article was carried out to consider all of the natural radiations, including cosmic, terrestrial, and food radiation.

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“…This interest reflects the predominant contribution of indoor radiation to the total exposure of the public, especially in urban regions. Natural radioactivity in Egyptian building materials in selected cities has been reported by several authors [10][11][12][13][14][15][16][17][18][19][20]. In addition, Henaish et al [21] performed in situ measurements with a GM detector throughout Egypt, both indoors and outdoors.…”

Section: Introductionmentioning

confidence: 90%

Collective effective dose received by the population of Egypt from building materials

et al. 2008

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Natural radioactivity due to the presence of 226Ra, 232Th and 40K in selected building materials (cement, sand, bricks, gypsum and ceramic) used in Egypt was measured using a gamma-ray spectrometer with an HPGe detector. The average activity concentrations observed in different building materials ranged from 10.0 +/- 1.3 to 109 +/- 6, <2 to 55.8 +/- 2.2 and 5.5 +/- 1.7 to 684 +/- 34 Bq kg(-1) for 226Ra, 232Th and 40K, respectively. Based on these, together with previously reported results, the effective doses received by the residents of different types of house within all Egyptian governorates were assessed using the WinMat computer program. The results were below 1 mSv a(-1) in all cases. The collective effective dose indoors was assessed as 15,000 man Sv and the excess effective dose due to building materials was 0.07 mSv a(-1).

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Natural radioactivity levels in building materials used in Egypt

Cited by 10 publications

References 13 publications

Review studies of the radioactivity of building materials

Review studies of the radioactivity of building materials

A review on natural background radiation

Collective effective dose received by the population of Egypt from building materials

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