Assessment of Radiological Hazards Due to Soil Samples at Daily Part-Time School, Osun State Polytechnic, Iree, Nigeria
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- Activity Concentration, Gamma Ray Spectroscopy, Natural Radionuclides, Radium Equivalent
- H. O. Efunwole; O. E. Alaje; R. O. Salako; A. M. Raimi; I. O. Abioye; P. A. Oluwafisoye
- Rocks and soils habour natural radionuclides in varying proportion depending on the geographical locations of the area under studies all over the earth. Adverse effects are identified with ionizing radiation arising from the radionuclides especially when at high level of concentration. A knowledge of gamma radioactivity is necessary to adopt preventive measures to minimize the associated harmful effects of the radionuclides. Activity concentrations of natural radionuclides, 226Ra, 232Th and 40K, of soil samples at Daily Part-Time school, Osun state polytechnic, were measured using gamma ray spectroscopy. The radiological hazards due to the natural radioactivity in the samples were assessed from the calculation of radium equivalent activity concentrations which ranged from 4.35 to 29.78 Bq/kg. All the values obtained were lower than the recommended limit of 370 Bq/kg. The result indicates an acceptably low radiological risk associated to the soil in the environment.
Full text: IJISM_373_Final.pdf