Effective dose from natural background radiation in Keffi and Akwanga towns, central Nigeria

نویسندگان

  • A. Termizi Ramli Department of Physics, Faculty of science, University Technology Malaysia
  • A.S. Aliyu Department of Physics, Faculty of science, University Technology Malaysia
  • E.H. Agba Department of Physics, Faculty of Science Benue State University Makurdi, Nigeria
  • M.A. Saleh Department of Physics, Faculty of science, University Technology Malaysia
چکیده مقاله:

Background: Human is exposed to radiation in their environment with or without their consent and the exposure to natural background radiation is an unpreventable event on earth. Materials and Methods: An in situ assessment of the indoor and outdoor background radiation in Akwanga and Keffi towns of Nasarawa state Nigeria was carried out using a halogen-quenched Geiger Muller (GM) detector (Inspector alert Nuclear radiation monitor SN: 3544). Each of these towns was divided into at least 20 sampling areas where at least ten readings were taken in order to have a reliable data. Results: The mean indoor and outdoor annual effective dose of Akwanga were 1.29± 0.13mSv/yr and 0.31±0.04 mSv/yr respectively and that of Keffi were 1.08± 0.15mSv/yr and 0.25±0.04 mSv/yr respectively. The radiation levels in both highly populated towns were found to be within the safe limit for areas of normal background set by UNSCEAR (2.4 mSv/yr). Conclusion: These results would serve as a baseline upon which other exposures would be assessed and in the future, serve as reference for dosimetry and decontamination in situations of radiation poisoning of these towns.

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effective dose from natural background radiation in keffi and akwanga towns, central nigeria

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عنوان ژورنال

دوره 12  شماره None

صفحات  47- 52

تاریخ انتشار 2014-01

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