American Journal of Physics and Applications 2017; 5(2): 20-23 http://www.sciencepublishinggroup.com/j/ajpa doi: 10.11648/j.ajpa.20170502.12 ISSN: 2330-4286 (Print); ISSN: 2330-4308 (Online) Specific Activities and Annual Effective Dose of Natural Radionuclides Due to the Intake of Some Types of Sugar Available in Baghdad Markets Basim Khalaf Rejah Collage of Science for Women, Baghdad University, Baghdad, Iraq Email address: basimkrphys@csw.uobaghdad.edu.iq To cite this article: Basim Khalaf Rejah. Specific Activities and Annual Effective Dose of Natural Radionuclides Due to the Intake of Some Types of Sugar Available in Baghdad Markets. American Journal of Physics and Applications. Vol. 5, No. 2, 2017, pp. 20-23. doi: 10.11648/j.ajpa.20170502.12 Received: February 6, 2017; Accepted: February 18, 2017; Published: March 9, 2017 Abstract: In this research the specific activity of natural radionuclides 226 Ra, 232 Th and 40 K were determined by sodium iodide enhanced by thallium NaI (Tl) detector and assessed the annual effective dose in Beladi, Aldar, Alusraa, Alkhaleej and Aletehaad which are available in Baghdad markets. The specific activity of 40 K has the greater value in all the types which is in the range of allowed levels globally that suggested by UNSCEAR. The mean value of annual effective doses was 0.198, 0.094 and 0.098 mSv/y for 226 Ra, 232 Th and 40 K respectively. Keywords: Natural Radionuclides, Sugar, Contamination, Ingestion, Annual Effective Dose 1. Introduction The radiation is a natural phenomenon surrounding human beings everywhere in daily life, and human activity has led to increased concentrations in some locations or due to accidental or certain industrial problems or mismanagement, which lead to cases of serious pollution, radiation during the accidents that occur in nuclear reactors or because of nuclear tests or radioactive waste leaking from the vehicles and satellites or due to serious garbage resulting from factories that use chemicals processing radiocarbon dating, where this radiation returned to earth contaminated air, water, soil and food, leading to fatal and deadly risk to humans and other living organisms, or organisms cause abnormalities or imbalances in the vital systems, according to radiation dose and type of level [1, 2]. Radioactive contamination is known emission serious radiation as a result of incidents get in nuclear reactors or of radioactive waste or any source used in radiation harmful doses is destroying the organism cells directly upon exposure to radiation or indirectly through its concentration in the air, water or soil or food or sewage sludge [3, 4]. Sources of radioactive contamination and other natural sources include the result of human activities, and includes natural ionizing cosmic rays, X-rays and gamma rays emitted by radioactive rock and potassium [5]. The sources resulting from human activities include radioactive medicines used in the medical fields, radioactive materials used in the biological sciences X-rays, as well as rays of nuclear reactors and nuclear weapons and electronic equipment [6]. The amount of cosmic radiation vary according to place high above sea level and depending on the geographical location, where the least amount in the vicinity of the surface of the sea, places, and increasingly higher you go with him, we find the higher you go with him by ten thousand feet whenever doubled the amount of cosmic rays three times. It should be noted that the atmosphere is a protective barrier of cosmic rays [7, 8]. The outer shell of soil containing amounts of radioactive elements such as uranium and thorium, and the concentration of radioactive elements varies depending on the soil type, we find that their focus is getting the granite rocks and the least in the sandy soil. Radiation from the soil mainly composed of gamma radiation, which absorbs the alpha and beta inside the outer shell of the soil [9]. There are some natural radioactive elements such as carbon-14, potassium 40 in human food and in the body. There is also the human body radium 226 and polonium-210 Ba and Sr 90, and vary the amount not to beam from a member of the last human body, for example,