Natural Radioactivity in Foods Consumed in Turkey
This study aims to determine the natural radioactivity levels in some foodstuffs produced in Turkey. For this purpose, 48 different foods samples were collected from different land parcels throughout the country. All samples were analyzed to designate both gross alpha and gross beta radioactivities and the radionuclides’ concentrations. The gross alpha radioactivities were measured as below 1 Bq kg-1 in most of the samples, some of them being due to the detection limit of the counting system. The gross beta radioactivity levels ranged from 1.8 Bq kg-1 to 453 Bq kg-1, larger levels being observed in leguminous seeds while the highest level being in haricot bean. The concentrations of natural radionuclides in the foodstuffs were investigated by the method of gamma spectroscopy. High levels of 40K were measured in all the samples, the highest activities being again in leguminous seeds. Low concentrations of 238U and 226Ra were found in some of the samples, which are comparable to the reported results in the literature. Based on the activity concentrations obtained in this study, average annual effective dose equivalents for the radionuclides 226Ra, 238U, and 40K were calculated as 77.416 µSv y-1, 0.978 µSv y-1, and 140.55 µSv y-1, respectively.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1127376Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 1102
 UNSCEAR (2008). Effects of ionizing radiation. United Nations Scientific Committee on the Effects of Atomic Radiation, 2006 Report to the General Assembly, with scientific annexes. United Nations, New York
 Carini F (2001). Radionuclide transfer from soil to fruit. Journal of Environmental Radioactivity 52:237-279.
 Karahan G, Bayulken A (2000). Assessment of gamma dose rates around Istanbul, Turkey. Journal of Environmental Radioactivity 47:213-221.
 IAEA (1989). Measurement of radionuclides in food and the environment. International Atomic Energy Agency. Technical Reports Series No. 295, Vienna.
 Krieger LH (1975). Interim radiochemical methodology for drinking water. US Environmental Protection Agency, EPA 600/4, 75-008. Cincinnati, Ohio.
 Venturini L, Sordi GAA (1999). Radioactivity in and committed effective dose from some Brazilian foodstuffs. Health Physics 76(3):311-313.
 Rassow J (1986). Kernreaktorunfall in Tschernobyl. Risiken der Kernenergie, VCH Publishers, pp. 21-38.
 Badran HM, Sharshar T, Elnimer T (2003). Levels of 137Cs and 40K in edible parts of some vegetables consumed in Egypt. Journal of Environmental Radioactivity 67:181-190.
 Zhu H (1993). Investigation of food radioactivity and estimation of external dose by ingestion in two Chinese high radiation areas. In M. Sohrabi, J. U. Ahmed, S. A. & Durrani (Eds.), in Proceedings of the International Conference on High Levels of Natural Radiation, Rasmar, 1990. IAEA, Vienna.
 Lalit BY, Shukla VK (1982). Natural radioactivity in foodstuffs from high natural radioactivity areas of Southern India. Vohra KG, Mishra UC, Pillai KC, Sadasivan S (Eds.). Second Special Symposium on Natural Radiation Environment, held at Bhabha Atomic Research Centre, Bombay 400 085, India, January 19-23, 1981. Halsted Press, pp. 43-49.
 Akhtar N, Tufail M (2007). Natural radioactivity intake into wheat grown on fertilized farms in two districts of Pakistan. Radiation Protection Dosimetry 123(1):103-112.
 Shanthi G, Thampi Thanka Kumaran J, Allan Gnana Raj G, Maniyan CG (2010). Natural radionuclides in the South Indian foods and their annual dose. Nuclear Instruments and Methods in Physics Research A 619:436-440.
 Ababneh ZQ, Alyassin AM, Aljarrah KM, Ababneh AM (2010). Measurement of natural and artificial radioactivity in powdered milk consumed In Jordan and estimates of the corresponding annual effective dose. Radiation Protection Dosimetry, 138(3): 278-283.
 UNSCEAR (1982). Ionizing radiation: sources and biological effects. United Nations Scientific Committee on the Effects of Atomic Radiation, 1982 Report to the General Assembly, with annexes. United Nations, New York.
 NCRP (1987). Exposure of the population of the United States and Canada from natural radiation. National Council on Radiation Protection and Measurements, Report No. 94. Bethesda, Maryland.
 ICRP (1996). Age dependent doses to members of the public intake of radionuclides: Part 5, Compilation of ingestion and inhalation dose coefficients. International Commission on Radiation Protection, Publication 68. Pergamon Press, Oxford.