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IJSRP, Volume 7, Issue 5, May 2017 Edition [ISSN 2250-3153]

      Essien, I. E., Essiett, A. A., Ani, O. B., Peter, I. G and Udofia, A. E

Abstract: The radiological hazard indices due to the radioactivity in soil samples in Ibiono Ibom Local Government Area of Akwa Ibom State, Nigeria were estimated. Soil samples were randomly collected at the depth of 30 cm in different locations from each of the three studied sites. The radionuclide activity concentrations in the soil samples were measured using gamma spectroscopy method. The mean activity concentration of 40K are 238.10±22.47 Bq/Kg, 73.84±7.15 Bq/Kg and 106.58±8.63 Bq/Kg respectively for the three sites, then for 238U the mean values for the three sites are respectively 8.26±2.06 Bq/Kg, 6.11±1.58 Bq/Kg and 3.16±0.80 Bq/Kg and for 232Th the mean values are 9.13±1.03Bq/Kg, 8.13±0.91Bq/Kg and 5.91±0.66Bq/Kg respectively. The mean radium equivalent for the three areas is 27.222 Bq/kg. The mean absorbed dose rates for the areas were 19.805 nGyh-1, 10. 863nGyh-1 and 9.787 nGyh-1 The mean total annual effective dose equivalent obtained for the areas were 0.101mSvy-1 , 0.062mSvy-1 and 0.060mSvy-1 respectively The values for all the hazards indices obtained were found to be below the world limits Therefore the level of exposure at the study areas presently poses no significant health threat, hence, the soils can be used as building material.

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Essien, I. E., Essiett, A. A., Ani, O. B., Peter, I. G and Udofia, A. E (2017); Estimation of Radiological Hazard Indices Due To Radioactivity in Soils in Ibiono Ibom, Akwa Ibom State, Nigeria; Int J Sci Res Publ 7(5) (ISSN: 2250-3153).



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