Investigation of Absorption and Distribution of Natural Radionuclides in the Rice Product in Mahmood Abad City to Estimate Cancer Risk



Changizi V¹ ; Zare MR² ; Kasiri S³ Show Affiliations
Source: Journal of Payavard Salamat Published:2020

Abstract

Background and Aim: Due to the presence of ionizing radiation sources in the environment and their potential to enter the food chain, the natural radiation in the rice product of Mahmoud Abad residents of this area should be evaluated. Materials and Methods: Using standard sampling methods, the number of sampling points and locations (about 10 points) was determined. After recording the geographical location of the sites, 2 kg of soil and 2 kg of rice were removed and 20 samples were coded. 950 g of soil and rice were milled and transferred to standard Marinelli dishes with 50 mesh. The samples were completely sealed and after about one month, they were visualized with ultra-pure germanium detec-tors(HPGe). Subsequently, specific radionuclide radiosensitivity in soil and rice soil samples, radionuclide transfer factors from soil to rice, annual effective dose and risk of cancer due to rice consumption were measured. Results: Effective total dose of nuclei studied in #value, lifetime cancer risk of238U from #value to 0.00019,226Ra from #value to 0.00008,235U #value,232Th from #value to 0.00027,40K From 0.00014 to 0.00082 and finally it was zero for cesium. Conclusion: There is no harmful effect on the people of the region regarding the radionuclides of rice. © 2020, Tehran University of Medical Sciences. All rights reserved.