Nuclear Physics and Atomic Energy

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Nuclear Physics and Atomic Energy

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  Publisher: Institute for Nuclear Research of the National Academy of Sciences of Ukraine
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Nucl. Phys. At. Energy 2020, volume 21, issue 2, pages 187-194.
Section: Radiobiology and Radioecology.
Received: 07.08.2019; Accepted: 19.03.2020; Published online: 3.09.2020.
PDF Full text (en)

Natural radioactivity in soil samples from selected areas in Nineveh governorate, Iraq

Jamal K. Alsaedi, Nada M. Hasan*, Ali A. Abdulhasan

Directorate of Nuclear Research and Applications, Ministry of Higher Education, Science and Technology, Baghdad, Iraq

*Corresponding author. E-mail address:

Abstract: The activity distribution of natural radionuclides 232Th, 226Ra, 40K and 137Cs were determined in soil samples. The samples were collected from four different regions in Nineveh governorate north-west of Iraq (Tall Kayf, Badush, Al-Hamdaniya, Hammam Al-alil) and measured by the gamma-ray spectrometry with high purity germanium (HPGe) detector with relative efficiency 50 %. The specific radioactive activity of the samples was in the range of 1.75 - 45.56; 8.63 - 43.72; 147.92 - 502.49 and MDL - 69.32 Bq/kg, respectively, at the selected areas. The calculated hazard indices that estimate the potential radiological health risk such as radium equivalent activity (Raeq) were in the range 40.33 - 122.12 Bq/kg. The absorbed dose rate in the air was also calculated for the samples and it was in the range 20.51 - 56.72 nGy/h. External hazard index (Hex) is in the range 0.11 - 0.33, internal hazard index (Hin) is in the range 0.13 - 0.4 and gamma index was 0.32 - 0.89. The annual effective dose equivalent (AEDE), annual gonadal dose equivalent (AGDE), and excess lifetime cancer risk (ELCR) were also calculated and their ranges were 25.15 - 69.56; 151.63 - 396.05 and 0.09·10-3 - 0.24·10-3 respectively. This study showed that there is no radiation hazard to the public due to natural radionuclides in the selected areas.

Keywords: activity concentrations, gamma-ray spectrometry, hazard indices, natural radioactivity, HPGe detector.


1. I. Sert et al. Estimation of sediment accumulation rates using naturally occurring 210Pb models in Gulbahce Bay, Aegean Sea. J. Environ. Rad. 107 (2012) 1.

2. G. Alzubaidi, F.B.S. Hamid, I. Abdul Rahman. Assessment of Natural Radioactivity Levels and Radiation Hazards in Agricultural and Virgin Soil in the State of Kedah, North of Malaysia. Sci. World J. (2016) 6178103.

3. R. Mehra, S. Surinder. Use of Gamma-Ray Spectroscopy Measurements for Assessment of the Average Effective Dose from the Analysis of 226Ra, 232Th and 40K in Soil Samples. Indoor Built Environ. 18(3) (2009) 270.

4. M.C.A. Alvarez, M.T.D. Vivero. Natural radionuclide contents in Spanish coals of different rank. Fuel 77(13) (1998) 1427.

5. Ch.H. Lakehal, M. Randhane, A. Boucenna. Natural radionuclide concentration in two phosphate ores of east Algeria. J. Environ. Rad. 101(5) (2010) 377.

6. A.H. Taqi, L.A.A. Al-Ani, A.M. Ali. Assessment of the natural radioactivity levels in the Kirkuk oil field. J. Radiat. Res. Appl. Sci. 9(3) (2016) 337.

7. R.M. Yousuf, K.O. Abdullah. Measurement of natural radioactivity in soil collected from the eastern of Sulaiman governorate in Kurdistan-region, Iraq. ARPN J. Sci. Techn. 7 (2013) 749.

8. R. Kapsimalis, S. Landsberger, N. Reguigui. Measurement of uranium in small quantities in phosphates by use of gamma-ray spectrometry and the 1001 keV peak of 234mPa. J. Radioanal. Nucl. Chem. 280(2) (2009) 293.

9. A.P. Yousaf et al. External gamma radiation levels and natural radioactivity in the soil around a phosphate fertilizer plant at Mumbai. J. Radioanal. Nucl. Chem. 300 (2014) 23.

10. S. Harb et al. Activity concentration for surface soil samples collected from Armant, Qena, Egypt. In: Proc. of the 4-th Environmental Physics Conference, Hurghada, Egypt, 2010, p. 49.

11. A. El-Taher, J.H. Al-Zahran. Radioactivity measurement and radiation dose assessment in the soil of Al-Qassim region, Saudi Arabia. Indian Journal of Pure & Applied Physics 52 (2014) 147.

12. B.A. Almayahi. Gamma Spectroscopic of Soil Samples from Kufa in Najaf Governorate, Iraq. World Applied Sciences Journal 31(9) (2014) 1582.

13. A.M. Saleh, A.H. Al-Mashhadani, M.A. Siyah. Natural Radioactivity Concentration and Estimation of Radiation Exposure in Environmental Soil Samples from Al-Sader City, Iraq. International Journal of Computer Engineering and Technology 4 (2014) 2902.

14. R. Veiga et al. Measurement of natural radioactivity in Brazilian beach sands. Radiat Meas. 41 (2006) 189.

15. D.A.E. Darwish, K.T.M. Abul-Nasr, A.M. El-Khayatt. The assessment of natural radioactivity and its associated radiological hazards and dose parameters in granite samples from South Sinai, Egypt. J. Radiat. Res. Appl. Sci. 8(1) (2015) 17.

16. A.A. Al-Hamidawi, H.H. Al-Gazaly, L.A. Al-Alasadi. Determination of natural radiation contamination for some types of legumes available in the Iraqi markets. Adv. Appl. Sci. Res. 4(5) (2013) 245. Article

17. A.O. Taiwo et al. Determination of radium equivalent activity from naturally occurring radionuclide around a superphosphate fertilizer factory in Nigeria. Archives of Applied Science Research 6(1) (2014) 28. Article

18. H.M. Diab et al. Evaluation of natural radioactivity in a cultivated area around a fertilizer factory. J. Nucl. Rad. Phys. 3(1) (2008) 53.

19. E.O. Agbalagba, G.O. Avwiri, Y.E. Chad-Umoreh. γ Spectroscopy measurement of natural radioactivity and assessment of radiation, hazard indices in soil samples from oil fields environment of Delta State, Nigeria. J. Environ. Rad. 109 (2012) 64.

20. A.K. Ademola, A.K. Bello, A.C. Adejumobi. Determination of natural radioactivity and hazard in soil samples in and around the gold mining area in Itagunmodi, South-Western, Nigeria. J. Radiat. Res. Appl. Sci. 7(3) (2014) 249.

21. I.F Al-Hamarneh, M. Awadallah. Soil radioactivity levels and radiation hazard assessment in the high lands of northern Jordan. Radiat. Meas. 44 (2009) 102.

22. B.G. Jagadeesha, Y. Narayana. Natural radionuclide concentration in Hassan district of South India. Radiation Protection and Environment 41(1) (2018) 37.

23. N. Zaim, H. Atlas. Assessment of radioactivity levels and radiation hazards using gamma spectrometry in soil samples of Edirne, Turkey. J. Radioanal. Nucl. Chem. 310(3) (2016) 959.

24. R.D. Senthilkumar, R. Narayanaswamy. Assessment of radiological hazards in the industrial effluent disposed soil with statistical analyses. J. Rad. Res. Appl. Sci. 9 (2016) 449.

25. K.R.S. Dizman, F.K. Gorur. Determination of radioactivity levels of soil samples and the excess of lifetime cancer risk in Rize province, Turkey. Int. J. Radiat. Res. 14(3) (2016) 237.

26. S. Harb et al. Radioactivity Levels and Soil-to-Plant Transfer Factor of Natural Radionuclides from Protectorate Area in Aswan, Egypt. World Journal of Nuclear Science and Technology 4 (2014) 7.

27. A. Osouli, F. Abbasi, M. Naseri. Measurement of 137Cs in soils of Tehran province, Iran. Int. J. Radiat. Res. 7(3) (2009) 141.

28. T. Nasir, H. Al-Sulaiti, H.R. Patrick. Assessment of Radioactivity in Some Soil Samples of Qatar by Gamma-Ray Spectroscopy and the Derived Doses Rate. Pakistan Journal of Scientific and Industrial Research. Series A: Physical Sciences 55(3) (2012) 128.

29. A.S. Alaamer. Characterization of 137Cs in Riyadh Saudi Arabia Soil Samples. World Journal of Nuclear Science and Technology 2 (2012) 161.

30. S. Harb et al. Natural Radioactivity of soil samples from some areas of Aden governorate, south of Yemen Region. Int. J. Curr. Microbiol. App. Sci. 3(11) (2014) 640. Article

31. A. Durusoy, M. Yildirim. Determination of radioactivity concentrations in soil samples and dose assessment for Rize Province, Turkey. J. Radiat. Res. Appl. Sci. 10 (2017) 348.

32. I.O.T. Yassine. Natural radioactivity in the Syrian environment. J. Sci. Total. Environ. 170(1) (1995) 119.

33. O. Abu-Haija. Determination of Natural Radionuclides Concentrations in Surface Soil in Tafila, Jordan. Mod. Appl. Sci. 6(3) (2012) 87.

34. H.H. Al-Gazaly et al. Natural radioactivity in the soil at regions around the uranium mine in Abu-Skhair Najaf Province, Iraq. J. Adv. Appl. Sci. Res. 5(1) (2014) 13. Article

35. N.F. Tawfiq, H.L. Mansour, M.S. Karim. Natural Radioactivity in Soil Samples for Selected Regions in Baghdad Governorate. International Journal of Recent Research and Review 8(1) (2015) 1. Article

36. United Nations Scientific Committee on the Effects of Atomic Radiation. UNSCEAR 2000 Report to the General Assembly, with Scientific Annexes. Vol. 1. Sources and Effects of Ionizing Radiation (New York, United Nations, 2000).