Determination of Annual Gonnodal Dose Equivalent Arising from Natural Radioactivity in Soil of Ika North East Local Government Area of Delta State, Nigeria

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Abstract

Abstract: The radiometric survey of soil samples collected from some communities in Ika North-East local Government area of Delta State, Nigeria were investigated using gamma-ray [NaI(TI)] Spectroscopy. The average activity concentration of 40K, 238U and 232Th in soil samples from the selected communities were 512.43 ± 1.91 Bqkg-1, 37.49±2.44 Bqkg-1 and 29.46 ± 2.42 Bqkg-1 respectively. By comparing with recommendation standard, it was observed that the obtained average results of 40K and 238U exceeded the standard value limit of 400 Bqkg-1 and 30 Bqkg-1respectively. The calculated radiological hazard values were lower than the world average standard except for the annual gonnodal dose equivalent that exceeded the world average value by 33.3%. Therefore in conclusion, exposure to the soils in these communities will pose little or no health problem to the inhabitants in these communities

Keywords: Radiometric, Soil Recommendation Standard, Gonnodal Dose, Health,

References