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Measurement of natural radionuclides and dose assessment ofgranites from Ondo State, Nigeria

Published online by Cambridge University Press:  17 December 2010

J.A. Ademola  and
A.A. Ayeni
J.A. Ademola
Affiliation:
Department of Physics, University of Ibadan, Ibadan, Nigeria.
A.A. Ayeni
Affiliation:
Department of Physics, University of Ibadan, Ibadan, Nigeria.
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Abstract

The activity concentrations of 226Ra, 232Th and 40K infifty granite samples collected from five different quarry industries in Ondo State,Nigeria, were determined using gamma-ray spectrometry. The mean activity concentrationsfor each industry ranged from 16.7(6.4) to 85.4(23.0), 62.4(10.1) to 113.6(7.6), and1315(136) to 1551(84) Bq.kg-1 for 226Ra, 232Th and40K, respectively. The values in parenthesis are the standard deviations.When compared with results from some parts of the world, the 226Ra and232Th contents were lower, whereas the 40K content was similar.Using different approaches to estimate the potential radiological hazard of the samples,the results obtained were below the recommended maximum limits. This shows that theradiological hazards associated with the use of the granites examined in this study asbuilding material are within the acceptable limit.

Keywords

Natural radionuclidesgranitedose assessmentOndo State
Type
Article
Information
Radioprotection , Volume 45 , Issue 4 , October 2010 , pp. 513 - 521
Copyright
© EDP Sciences, 2010

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References

Abd El-Naby, H.H., Saleh, G.M. (2003) Radioelement distribution in the Proterozoic granites and associated pegmatites of Gabal El Fereyid area, southeastern desert Egypt, Appl. Radiat. Isotop. 59, 289-299. Google Scholar
Ademola, J.A., Atare, E.E. (2010) Radiological assessment of natural radionuclides in soil within and around crude oil flow and gas compression stations in the Niger Delta, Nigeria, Radioprotection 45, 219-227. Google Scholar
Anjos, R.M., Veiga, R., Soares, T., Santos, A.M.A., Aguiar, J.G., Frascá, M.H.B.O, Brage, J.A.P., Uzêda, D., Mangia, L., Facure, A., Mosquera, B., Carvalho, C., Gomes, P.R.S. (2005) Natural radionuclide distribution in Brazilian commercial granites, Radiat. Meas. 39, 245-353. Google Scholar
Arafa, W. (2004) Specific activity and hazards of granite samples collected from Eastern Desert of Egypt, J. Environm. Radioact. 75, 315-327. Google ScholarPubMed
Asghar, M., Tufail, M., Sabiha-Javied, , Abid, A., Waqas, M. (2008) Radiological implications of granite of northern Pakistan, J. Radiol. Prot. 28, 387-398. Google ScholarPubMed
Beretka, J., Mathew, P.J. (1985) Natural radioactivity of Australian building materials, industrial wastes and by-products, Health Phys. 48, 87-95. Google ScholarPubMed
Chen, C.-J., Lin, Y.-M. (1996) Assessment of building materials for compliance with regulation of ROC, Environm. Intern. 22, 221-226. Google Scholar
DIH (1986) Department of Industrial Hygiene, Radiological Health Protection Standards for Building Materials GB6566-86. Department of Industrial Hygiene, Beijing.
EC (1999) European Commission, Radiological Protection Principles concerning the Natural Radioactivity of Building Materials, Radiation Protection 112.
El-Arabi, A.M. (2007) Ra, Th, K concentrations in igneous rocks from eastern desert Egypt and its radiological implications, Radiat. Meas. 42, 94-100. Google Scholar
Farai, I.P., Ademola, J.A. (2005) Radium equivalent activity concentrations in concrete building blocks in eight cities in Southwestern Nigeria, J. Environm. Radioact. 79, 119-125. Google ScholarPubMed
Krieger, R. (1981) Radioactivity of construction materials, Betonwerk Fertigteil-Tech. 47, 468-473. Google Scholar
Krisiuk E.M., Tarasov S.I., Shanov V.P., Shalak N.I., Lisachenko E.P., Gomelsky L.G. (1971) A Study of Radioactivity in Building Materials. Research Institute for Radiation Hygiene, Leningrad.
Krstiæ, D., Nikeziæ, D., Stevanoviæ, N., Vuèiæ, D. (2007) Radioactivity of some domestic and imported building materials from south eastern Europe, Radiat. Meas. 42, 1731-1736. Google Scholar
Lindell, B. (1984) A radon control programme in theory and practice, Radiat. Prot. Dosim. 7, 417-425. Google Scholar
Mamont-Cleisla K., Gwiazdowski B., Biernacka M., Zak A. (1981) Radioactivity in building materials in Poland, Proc. 2nd Special Symp. On Natural Radiation Environment (Bombay, January), pp. 551-556. Wiley Eastern, New Delhi.
Ménager, M.T., Heath, M.J., Ivanovich, M., Montjotin, C., Barillon, C.R., Camp, J., Hasler, S.E. (1993) Migration of uranium from uranium-mineralised fractures into rock matrix in granite: implications for radionuclide transport around a radioactive waste repository, Radiochimica Acta 66/67, 47-83. Google Scholar
Orgun, Y., Altinsoy, N. (2005) Natural radioactivity levels in granitic plutons and groundwaters in southeast part of Eskisehir, Turkey, Appl. Radiat. Isotop. 63, 267-275. Google ScholarPubMed
Pavlidou, S., Koroneos, A., Papastefanou, C., Christofides, G., Stoulos, S., Vavelides, M. (2006) Natural radioactivity of granites used as building materials, J. Environm. Radioact. 89, 48-60. Google ScholarPubMed
Tzortzis, M. (2003) Gamma radiation measurements and dose rates in commercially-used natural tiling rock (granites), J. Environm. Radioact. 70, 223-235. Google Scholar
UNSCEAR (1993) United Nations Scientific Committee on the Effects of Atomic Radiation, Sources and Effects of Ionizing Radiation, Report to the General Assembly. United Nations, New York.
UNSCEAR (2000) United Nations Scientific Committee on the Effects of Atomic Radiation. Sources and Effects of Ionizing Radiation, Report to the General Assembly, with scientific annexes, Vol. I: Sources. United Nations, New York.