Assessment of Natural Radioactivity and Gamma Dose Rate level round Dalanj area, South Kordofan - Sudan
- 1Department of Physics, Faculty of Education, University of Bule Nile, SUDAN
- 2Deparment of Physics, Taibah University, AL-Madinah Al-Munawarah, Kingdom of Saudi Arabia, SAUDIA ARABIA, Sudan Atomic Energy Commission, PO Box 3001, Khartoum, SUDAN
- 3Department of Physic, Faculty of Sciences, Sudan University of Science and Technology, SUDAN
- 4Committee on Radiation and Environmental Pollution Protection, Al Imam Mohammad IbnSaud Islamic University, Riyadh, SAUDIA RABIA, Sudan Atomic Energy Commission, PO Box 3001, Khartoum, SUDAN
Int. Res. J. Environment Sci., Volume 5, Issue (1), Pages 25-31, January,22 (2016)
This study was carried out to asses natural environmental radioactivity level and estimation gamma absorbed dose rates in soil and foodstuff samples collected round the Dalanj area, South Kordofan. By using (γ -spectroscopy)with NaI (Tl) detector, the activity distribution of radionuclides 238U, 232Th, 137Cs and 40K was to be22.08 Bqkg-1, 28.99 Bqkg-1, 1.38 Bqkg-1 and 319.16 Bqkg-1 in soil samples. On the other hand the activity distribution of radionuclide 238U, 232Th and 40K fallout nuclide137C in Foodstuff samples was to be 4.67Bqkg-1, 4.49 Bqkg-1, and 326 Bqkg-1 respectively. Evaluation of radiological absorbed dose rates and annual effective dose was determined. For the Soil sample were found in the range (26.78 to33.78) nGyh-1 with an average value of 31 nGyh-1, and.(32.86 to 41.47) ÁSvy-1 with an average value of 39.81 ÁSvy-1 respectively. Corresponding for Foodstuff samples ranged from (4.08 to 8.48) nGyh-1 with an average value of 6.16 nGyh-1 and (5.01 to 10.37) ÁSvy-1 with an average value of 7.56 ÁSvy-1 respectively. However, the results indicate the radioactivity level in the surveyed area was less than the global data reported in the UNSCEAR publications for normal background areas soil and Food stuff
- Mohammed Thabayneh and Mohanad MohammedJazzar. (2012)., Natural Radioactivity Levels andEstimation of Radiation Exposure in Environmental SoilSamples from Tulkarem, Province-Palestine, OpenJournal of Soil Science, 2, 7-16.
- Daryoush Shahbazi-Gahrouei., Mehrdad Gholami andSamaneh Setayandeh. (2013)., A review on naturalbackground radiation, J. Advanced BiomedicalResearch., 2(65).
- Junior J.A.S., Cardoso J.J.R.F., Silva C.M., Silveira S.Vand Amaral R.S. (2006)., Determination of radionuclidesin the environment using gamma spectrometry, Journalof Radio analytical and Nuclear Chemistry, 269(2), 451-455.
- Hatem Eltayeb Fadlalla Hemada. (2005)., Radioactivitylevels of basic foodstuffs and dose estimates in Sudan, MSc Thesis, Sudan Academy of Sciences (SAS), AtomicEnergy Council, Sudan.
- Einas H.O., Salih I and A. Khatri Sam. (2012)., GISmapping and assessment of terrestrial gamma-radiationin Northern state, J. Radiation Protection Dosimetry,151(3), 1-11.
- Babiker A.A., Ahmed M.M.O., Elamin. E. and Sam A.K.(2000)., Measurements of some natural radionuclides inElgash Area (Sudan)., In Proceedings of the Fourth ArabConference on the Peaceful Uses of Atomic Energy,Tunis, 14 to 18 November 1998 (Tunis: Arab AtomicEnergy), IV, 443-455.
- Sam A.K H and Moawia M. Elmahadi. (2007)., Assessment of Absorbed Dose Rate in air over plowedarable lends in Sinner state, Central Sudan., Journal ofRadiation Protection Dosimetry, 129(4), 473-7.
- Sam A.k., Sirelkhatim D.A., Hassona R.k., Hassan R.K.,Hag Musa E and Ahamed M.M.O. (2002)., Assessment ofGamma Dose Rate over a Suspected UraniumMineralization Area of Jebel Mun, Western Sudan, Journal of Radiation Protection Dosimetry, 102(2), 169-174.
- Sam A.K and Awad Al-Geed A.M.M. (2000)., Radiological evaluation of gold mining activities in ariab(eastern Sudan), J. Radiat. Prot. Dosim, 88(4), 335-340.
- Nooreldin Fadol, Isam Salih, Hajo Idriss, Ahmed Elfakiand Adam Sam. (2015)., Investigation of NaturalRadioactivity levels in Soil Samples from NorthKordofan, Sudan, Research Journal of Physical Sciences,3(7), 1-9.
- UNSCEAR (2000)., United Nations Scientific Committeeon the Effects of Atomic Radiation: Sources, effects andrisks of ionizing radiation., Report to the GeneralAssembly, with Scientific Annexes, New York, UnitedNations.
- UNSCEAR (1993). United Nations Scientific Committeeon the Effects of Atomic Radiation., Sources and effectsof ionizing radiation., Report to the General Assembly,with Annexes, English, Publishing and library section,United Nations office.