Effect of Extensive Use of Granite Countertops on the γ-Radiation Dose to Occupants of the New Buildings of King Abdulaziz University

Mohammed Sami Tayeb; Abdulraheem Abdulrahman Kinsara

doi:10.31686/ijier.vol4.iss9.586

Authors

Mohammed Sami Tayeb King Abdulaziz University, Saudi Arabia
Abdulraheem Abdulrahman Kinsara King Abdulaziz University, Saudi Arabia

DOI:

https://doi.org/10.31686/ijier.vol4.iss9.586

Keywords:

Radiation protection, Dose assessment, Granite, Exposure to γ-radiation, Risk assessment

Abstract

Exposure dose due to γ-radiation was measured in the new buildings of King Abdulaziz University using an advanced car-borne monitoring system to evaluate the effect of the extensive use of granites on the exposure dose rate to occupants. The measurements were conducted inside and outside the new buildings. For comparison, measurements inside the old buildings of limited granite use were conducted. The results indicated that the average exposure dose rate in the corridors of granite countertops was 0.115 μSv/h compared to 0.093 μSv/h in corridors of marble floors in the old buildings. About 4.2% increase in the annual effective dose due granite use was estimated. A maximum excess fatal cancer risk to an individual working in the new buildings due to exposure to excess γ-radiation from granite countertops was estimated by 1.4x10-6. The obtained results are discussed in detail and some conclusions are drawn.

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Author Biographies

Mohammed Sami Tayeb, King Abdulaziz University, Saudi Arabia

Lecturer (health physics) in radiation protection department
Abdulraheem Abdulrahman Kinsara, King Abdulaziz University, Saudi Arabia

Professor, Dean of the Faculty, Faculty of Engineering, Nuclear Engineering Department

References

Allen, J.G., Zwack, L.M., MacIntosh, D.L., Minegishi, T., Stewart, J.H., McCarthy, J.F., Predicted indoor radon concentrations from a Monte Carlo simulation of 1 000 000 granite countertop purchases. J. Radiologic. Protect., 33 (2013) 151-62 . DOI: https://doi.org/10.1088/0952-4746/33/1/151

Al Saleh, F.S., Al Berzan, B., Measurements of natural radioactivity in some kinds of marble and granite used in Riyadh region. J. Nucl. Radiat. Physic., 2 (2007) 25-36.

Bernhardt CHP, D., Gerhardt, A., Kincoid CIH, L., Implication of granite countertop construction and Presented work in progress Health Physics, July 13 (2009).

Chen, J., Rahman, N.M., Atiya, I.A., Radon exhalation from building materials for decorative use. J. environ. Radioact., 101 (2010) 317-322. DOI: https://doi.org/10.1016/j.jenvrad.2010.01.005

Darwish, D.A.E., Abu-Nasr, K.T.M., El-Khayatt, A.M., The assessment of natural radioactivity and its associated radiological hazards and dose parameters in granite samples from South Sinai, Egypt. J. Radiation Research and Applied Sciences, 8 (2015) 17-25. DOI: https://doi.org/10.1016/j.jrras.2014.10.003

Elless, M.P., Armstrong, A.Q. & Lee, S.Y., Characterization and solubility measurements of uranium-contaminated soils to support risk assessment. J. Health Physics, 72 (1997) 716–726. DOI: https://doi.org/10.1097/00004032-199705000-00007

ICRP (International Commission on Radiological Protection). Recommendations of the International Commission on Radiological Protection. ICRP Publication 60. Pergamon press: New York (1990).

Llope, W.J., Activity concentration and dose rates from decorative granite countertops. J. Environ. Radioact., 102 (2011) 620-629. DOI: https://doi.org/10.1016/j.jenvrad.2011.03.012

Myatt, T.A., Allen, J.G., Minegishi, T., McCarthy, W.B., Stewart, J.H., Macintosh, D.L., McCarthy, J.F., Assessing exposure to granite countertops—part 1: Radiation. Journal of Exposure Science and Environmental Epidemiology, 20 (2010) 273-280. DOI: https://doi.org/10.1038/jes.2009.44

Rogers, J.J.W., Adams, J.A.S., “Uranium”, K.H. Wedepohl, Editor, Handbook of Geochemistry. Berlin. (1969) Chap. 92.

Salas, H.T., Nalini, H.A., Jr, Mendes, J.C., Radioactivity dosage evaluation of Brazilian ornamental granitic rocks based on chemical data, with mineralogical and lithological characterization. Geol., 49 (2006) 520-526. DOI: https://doi.org/10.1007/s00254-005-0066-3

UNSCEAR (United Nations Scientific Committee on the Effects of Atomic Radiation). Sources and Effects of Ionizing Radiation. Report to General Assembly with scientific Annexes; United New York; (2000).