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2012 (Vol. 4, Issue: 09)
Article Information:

Levels of Radionuclide Contents in Stream Waters of Some Selected Rivers in Ogbomoso Land, South West Nigeria

J.O. Ajayi, O. Adedokun and B.B. Balogun
Corresponding Author:  J.O. Ajayi 

Key words:  Gamma spectrometry, radionuclides, South western Nigeria, water streams, , ,
Vol. 4 , (09): 835-837
Submitted Accepted Published
June 23, 2012 July 28, 2012 September 20, 2012
Abstract:

The study aims at providing a base-line data for the effective monitoring of unforeseeable radioactive fall-out in the investigated areas. Attempts were made to investigate the radionuclide concentration levels from ten selected streams spread around the five local governments of Ogbomoso land, South-Western Nigeria during 2010/2011 stream flow season. The stream water samples collected from these selected streams were then analyzed using gamma spectrometry with sodium iodide (NaI) detector connected to a multi-channel analyzer. All the stream water samples from these streams were found to contain permissible levels of radionuclides with mean activity values of 100.1326.82, 6.032.10 and 5.541.76 for 40K, 238U and 232Th, respectively. The mean absorbed dose rate of the water samples was found to be 0.10 mSv/year which is very low when compared to the International Commission on Radiological Protections (ICRP) recommended limit of 1 mSv/year and therefore pose no radiological hazard to the public.
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  Cite this Reference:
J.O. Ajayi, O. Adedokun and B.B. Balogun, 2012. Levels of Radionuclide Contents in Stream Waters of Some Selected Rivers in Ogbomoso Land, South West Nigeria.  Research Journal of Environmental and Earth Sciences, 4(09): 835-837.
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ISSN (Online):  2041-0492
ISSN (Print):   2041-0484
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