Relationship between Grain Size Distribution and Radon Content in Surficial Sediments of Wadi Arar, Saudi Arabia


  • M. A. M. Alghamdi Engineering Geology, Earth Science Faculty, King Abdulaziz University, Jeddah, Saudi Arabia
Volume: 8 | Issue: 1 | Pages: 2447-2451 | February 2018 |


Surficial sediments with low radon content are desirable materials in construction applications. In this study, the relationship between grain size and radon content was investigated in sediments collected from seven sites in Wadi Arar, Saudi Arabia, with the intent of determining whether grain size analysis could be used for rapidly assessing the suitability of potential construction materials. Thirty-five samples were collected (five per site) and the grain size distribution was determined using sieves. Radon contents were measured on composite samples with a RAD7 radon detector. Among the sediment types (gravel, coarse sand, medium sand, fine sand, and silt and clay), the best linear correlations between grain size and radon contents were found for the coarse sand (negative slope, r=0.82) and fine sand (positive slope, r=0.78). Polynomial relationships were also tested. A fourth-degree polynomial equation effectively described the correlation between grain size and radon content (R2 = 0.933). As shown by this model, the highest correlations with radon contents were detected at grain sizes smaller than 2.0 mm. Thus, grain size may be useful for preliminary site assessment work.


grain size distribution, Rad7, Radon, construction material, polynomial


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S. Darby, D. Hill, A. Auvinen, J. Barros, H. Baysson, F. Bochicchio, H. Deo, R. Falk, F. Forastiere, M. Hakama, I. Heid, L. Kreienbrock, M. Kreuzer, F. Lagarde, I. Makelainen, C. Muirhead, W. Oberaigner, G. Pershagen, A. Ruano-Ravina, E. Ruosteenoja, A. S. Rosario, M. Tirmarche, L. Tomasek, E. Whitley, H. E. Wichmann, R. Doll, “Radon in homes and risk of lung cancer: collaborative analysis of individual data from 13 European case-control studies”, BMJ, Vol. 330, Vol. 7485, p. 223, 2005 DOI:

J. H. Lubin, Z. Y. Wang, J. D. Jr Boice, Z. Y. Xu, W. J. Blot, L. De Wang, R. A. Kleinemen, “Risk of lung cancer and residential radon in China: pooled results of two studies”, International Journal of Cancer, Vol. 109, No. 1, pp. 132–137, 2004 DOI:

D. Krewski, J. H. Lubin, J. M. Zielinski, M. Alavanja, V. S. Catalan, R. W. Field, J. B. Klotz, E. G. Letourneau, C. F. Lynch, J. L. Lyon, D. P. Sandler, J. B. Schoenberg, D. J. Steck, J. A. Stolwijk, C. Weinberg, H. B. Wilcox, “A combined analysis of north american case-control studies of residential radon and lung cancer”, Journal of Toxicology and Enviromental Health, part A, Vol. 69, No. 7, pp. 533–597, 2006 DOI:

G. Imme, R. Catalano, G. Mangano, D. Morelli, “Radon exhalation measurements for environmental and geophysics study”, Radiation Physics and Chemistry, Vol. 95, pp. 349–351, 2013 DOI:

N. Ahmad, M. S. Jaafar, S. A. Khan, “Correlation of radon exhalation rate with grain size of soil collected from Kedah, Malaysia”, Science International, Vol. 26, No. 2, pp. 691–696, 2014

A. Sakoda, K. Hanamoto, Y. Ishimori, T. Kataoka, A. Kawabe, K. Yamaoka, “First model of the effect of grain size on radon emanation”, Applied Radiation and Isotopes, Vol. 68, No. 6, pp. 1169–1172, 2010 DOI:

A. H. Khayrat, M. A. Oliver, S. A. Durrani, “The effect of soil particle size on soil radon concentration”, Radiation Measurements, Vol. 34, No. 1-6, pp. 365–371, 2001 DOI:

H. Idriss, I. Salih, A. S. Alaamer, M. Y. Abdelgalil, S. A. Salih, A. M. Hasan, M. A. Eltahir, M. M. O. Ahamed, “Study of radon in soil gas, trace elements and climatic parameters around South Kordofan state, Sudan”, Environmental Earth Sciences, Vol. 72, No. 2, pp. 335–339, 2013 DOI:

E.-S. S. Abu Seif, A. R. Sonbul, B. A. H. Hakami, E. K. El-Sawy, “Experimental study on the utilization of dune sands as a construction material in the area between Jeddah and Mecca, Western Saudi Arabia”, Bulletin of Engineering Geology and the Environment, Vol. 75, No. 3, pp. 1007–1022, 2016 DOI:

E. Mutaz, M. A. Dafalla, “Chemical analysis and X-ray diffraction assessment of stabilized expansive soils”, Bulletin of Engineering Geology and the Environment, Vol. 73, No. 4, pp. 1063–1072, 2014 DOI:

M. A. M. Alghamdi, A. A. E. Hegazy, “Physical properties of soil sediment in Wadi Arar, Kingdom of Saudi Arabia”, International Journal of Civil Engineering, Vol. 2, No. 5, pp. 1–8, 2013

A. Al-Khattabi, S. Dini, C. Wallace, A. Banakhar, M. Al-Kaff, A. Al-Zahrani, Geological map of the Arar Quadrangle, Sheet 30, Saudi Geological Survey, Saudi Arabia, 2010

M. A. M. Alghamdi, H. Diab, “Measurement of radon content in silty sand soil using Rad7 and Cr-39 techniques at Wadi Arar, Saudi Arabia: comparison study”, International Journal of Management and Applied Science, Vol. 2, No. 5, pp. 126-132, 2016

M. A. M. Alghamdi, “Math Model of Grain Size Distribution Versus Radon Content of Wadi Arar, Kingdom of Saudi Arabia”, IASTEM International Conference, pp. 14-17, 2017


How to Cite

M. A. M. Alghamdi, “Relationship between Grain Size Distribution and Radon Content in Surficial Sediments of Wadi Arar, Saudi Arabia”, Eng. Technol. Appl. Sci. Res., vol. 8, no. 1, pp. 2447–2451, Feb. 2018.


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