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Radiological parameters due to radon-222 in soil samples at Baghdad governorate (Karakh), Iraq.

Abstract: Measurements of radon concentration, effective radium content, potential alpha energy concentration (PAEC) and annual effective dose (AED) were estimated for soil samples in fifteen locations of the Baghdad governorate (Karakh) in the central part of Iraq. In this survey we used the can technique, containing nuclear track detector (CR-39). The obtained values of radon concentration measurements were generally low, ranging from 38.12[+ or -]13.46 to 94.51[+ or -]16.5 Bq/[m.sup.3], with an average 66.07 Bq/[m.sup.3], while the effective radium content varied from 5.80[+ or -]0.21 Bq/kg to 14.39[+ or -]0.33 Bq/kg with an average 10.09 Bq/kg. The average of the PAEC and AED were assessed to be 7.14 mWL 1.66 mSv/y, respectively. The results of the present study shows that the radium content are lower than the allowed limit reported by Organization for Economic Cooperation and Development (OECD) that is equal to 370 Bq/kg. In general, it is seen that the AED limit was within the recommended reference level (3 mSv/y to 10 mSv/y) of the World Health Organization. Also, it is found that there is a strong correlation ([R.sup.2]= 1) between radon concentrations and effective radium content. The results obtained from this study indicate that the locations of Karakh has background radioactivity(radon concentrations) levels within the natural limits.

Keywords: radon levels, soil samples, Baghdad governorate, CR-39 detector

Ali Abid Abojassim (a)*, Ahmed Rahim Shltake (b), Laith Ahmed Najam (c) and Inas Riad Merza (a)

(a) Department of Physics, Faculty of Science, University of Kufa , Al-Najaf, Iraq

(b) Faculty of Medicine Teeth, University of Kufa, Kufa, Iraq

(c) Department of Physics, College of Science, Mosul University, Mosul, Iraq

(received February 8, 2017; revised May 25, 2017; accepted May 26, 2017)

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Author:Abojassim, Ali Abid; Shltake, Ahmed Rahim; Najam, Laith Ahmed; Merza, Inas Riad
Publication:Pakistan Journal of Scientific and Industrial Research Series A: Physical Sciences
Article Type:Author abstract
Geographic Code:7IRAQ
Date:May 1, 2017
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