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Assessment of Radioactive Risk and Radioactivity Levels in Soil Samples from Al-Samawah City, Iraq |
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| รหัสดีโอไอ | |
| Creator | Ali Abid Abojassim |
| Title | Assessment of Radioactive Risk and Radioactivity Levels in Soil Samples from Al-Samawah City, Iraq |
| Contributor | Inaam H. Kadhim, Rawaa M. Obaid |
| Publisher | Thai Society of Higher Education Institutes on Environment |
| Publication Year | 2568 |
| Journal Title | EnvironmentAsia |
| Journal Vol. | 18 |
| Journal No. | 2 |
| Page no. | 47-55 |
| Keyword | Natural radionuclides, Absorbed dose, Gamma radiation, NaI detector, T1 detector |
| URL Website | http://www.tshe.org/ea/index.html |
| Website title | EnvironmentAsia |
| ISSN | 1906-1714 |
| Abstract | It is important to determine the level of background radiation in order to assess health risks,given the increasing incidence of cancers among people living near old buildings. Therefore,the amount of natural radioactivity in the soil of some old buildings located in different partsof the Iraqi city of Samawah was determined using a NaI(Tl) gamma spectrometer, and it wasfound that they contain varying amounts of natural radionuclides 238U (uranium-238), 232Th(thorium-232), and 40K (potassium-40), and the reason for the variation is due to environmentalfactors and climate, agricultural methods, and levels of background radiation. The rangevalues of 238U, 232Th, and 40K (in unit Bq/kg) were 9.2 - 22.9, 2.7 - 11.41, and 119.43 - 174.92,respectively. Additionally, the absorbed dose (Dr) obtained in the study was 31.12 nG/h whichis lower than the UNSCEAR 2008 recommended 55 nG/h for the general population, and thevalues of the external hazard index (Hex) ranged from 0.07-0.142 to 0.095 - 0.204, with anaverage of 0.102 and 0.148, respectively. However, the estimated annual internal dose frominhalation of the tested radionuclides in the soil was 0.171 mSv/yr. Therefore, all the results ofthe current study were found to be less than the corresponding permissible limits given by theglobal average. Thus, the data resulting from the current study can be used as basic radiologicaldata for future investigations. |
