Assessment of Radiation Dose in Some Selected Buildings within the Main Campus of the Federal University of Agriculture, Abeokuta, Nigeria

  • A. M. Lasisi
  • P. A. Atanley
  • O. A. Adedulu
Keywords: Radiation dose, Dose rate, Dose equivalent, Survey meter


The natural environmental radiation exposure that humans encounter typically surpasses that from human-made sources. This radiation can have hereditary and somatic effects on individuals. Thus, an evaluation of radiation levels in selected buildings across the Federal University of Agriculture, Abeokuta main campus was conducted using a Geiger-Muller (GM) survey meter as the measuring device. Utilizing GPS, twenty-five evenly distributed sampling locations were identified in the initial phase of the university's main campus, and radiation exposure rates for staff and students were measured using a detector. The resulting analysis showed minimum and maximum mean absorbed doses of 0.026 and 0.04 mR/hr, respectively. The mean annual dose equivalent was calculated to be 0.82 mSv/yr. This value stands as the baseline dose equivalent, which is below the maximum permissible dose equivalent for members of the public, set at 1.0 mSv/yr by the International Commission for Radiological Protection (ICRP, 2009). Consequently, it can be concluded that the main campus of the Federal University of Agriculture Abeokuta is free from radiological contamination. The area is deemed safe for community members and all forms of human activities.


Ajayi, O. S. (2009). Measurement of activity concentrations of 40 K, 226 Ra and 232 Th for assessment of radiation hazards from soils of the southwestern region of Nigeria. Radiation and Environmental Biophysics, 48, 323-332.
Anagnostakis, M. J., Hinis, E. P., Simopoulos, S. E., & Angelopoulos, M. G. (1996). Natural radioactivity mapping of Greek surface soils. Environment International, 22, 3-8.
Farai, I. P., & Jibiri, N. N. (2000). Baseline studies of terrestrial outdoor gamma dose rate levels in Nigeria. Radiation Protection Dosimetry, 88(3), 247-254.
ICPR Publication (1990, 1991). Annual publication of International Commission on Radiological Protection
ICRP (2009). Annual of International Commission on Radiological Protection.
Iqbal, M., Tufail, M., & Mirza, S. M. (2000). Measurement of natural radioactivity in marble found in Pakistan using a NaI (Tl) gamma-ray spectrometer. Journal of Environmental Radioactivity, 51(2), 255-265.
National council on radiation protection and measurement. (1987). Environment radiation measurement, No. 95.
Shender, M. A. (1997). Measurment of Natural Radiaoactivity Level in Soi in Tripoli. Applied radiation and isotopes, 48(1), 147148.
Tzortzis, M., & Tsertos, H. (2004). Determination of thorium, uranium and potassium elemental concentrations in surface soils in Cyprus. Journal of Environmental Radioactivity, 77(3), 325-338.
How to Cite
Lasisi, A. M., Atanley, P. A., & Adedulu, O. A. (2024). Assessment of Radiation Dose in Some Selected Buildings within the Main Campus of the Federal University of Agriculture, Abeokuta, Nigeria. European Journal of Science, Innovation and Technology, 3(6), 463-469. Retrieved from