Natural Radioactivity and Radon Exhalation in the Sediment River Used in Sulaymaniyah Governorate, Iraq, Dwellings

Keywords: Building Materials, Gamma-Specific Activity, Gamma/Radon Radiological Parameters, Radon Mass Exhalation, Sediment River (Sand and Pebble)


The samples, sand and pebble (Sediment River), were collected from their selling places in Sulaymaniyah city, Iraq. Sand and pebble emanate each of 238U, 232Th, 40K, and radon naturally. The radon concentration in the air (Co) and gamma-specific activity (As) of the samples were measured using passive detectors (CR-39) and gamma spectrum analyzer (3 × 3 NaI (Tl) connected to digital spectrum analyzer), respectively. The mean value of the Co ± deviation of the investigated samples was 176.5 ± 6.9 Bq/mᵌ, which is lower than the worldwide value of 300 Bq m− ᵌ reported by the IAEA. However, an anomaly in Co value was found in Tanjaro (Sand) sample. The mean value radon mass exhalation rate (EM) was 10.9 ± 0.5 μBq/kg/h. The second part of the measuring is the gamma-specific activities (As) of each 226Ra, 232Th, and 40K. The As values were ranged (4.3 ± 0.2–22.6 ± 0.2), (1.9 ± 0.1–4.2 ± 0.1), and (39.8 ± 0.2–86.0 ± 0.4) Bq/kg , respectively. The mean calculated value of radium equivalent (Raeq) was 20.2±0.2 Bq/kg. The annual effective dose rate of gamma (Hann) was 0.13 mSv/y. Fortunately, the Hann value of the samples is lower than the world average value of 0.48 mSv/y.


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Author Biography

Adil M. Hussein, Advance Nuclear Laboratory, Physics Department, College of Science, University of Sulaimani, Kurdistan Region- Iraq

Dr. Adil Mohammed Hussein is a lecturer in Theoretical Nuclear Physics and He had experience in Environmental Radioactivity at the department of Physics-College of Science-University of Sulaimani. He achieved in Physics 1993 at the University of Salahaddin-Erbil, MSc. in Practical Nuclear Physics 2005 at the University of Mosul and awarded a PhD in Nuclear Structure Theory 2013 at the University of Sulaimani, he has about 7 published papers.


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How to Cite
Hussein, A. M. (2018) “Natural Radioactivity and Radon Exhalation in the Sediment River Used in Sulaymaniyah Governorate, Iraq, Dwellings”, ARO-THE SCIENTIFIC JOURNAL OF KOYA UNIVERSITY, 6(2), pp. 7-12. doi: 10.14500/aro.10381.