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Abstract
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Article Information:
Determination of Absorbed and Annual Effective Doses around Birnin Gwari Artisanal Goldmine, Kaduna State, Nigeria
Y.I. Zakari, R. Nasiru and M.A. Abdullahi
Corresponding Author: M.A. Abdullahi
Submitted: January 16, 2013
Accepted: February 07, 2013
Published: May 20, 2013 |
Abstract:
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This study presents result of outdoor absorbed dose rate and estimated annual effective dose rate from the naturally occurring radionuclides 238U, 232Th and 40K around BirninGwari artisanal goldmine using Instrumental Neutron Activation Analysis (INAA). The results showed that the mean absorbed dose rate is 96.52 nGy/h with a standard deviation of 33.3 nGy/h and the standard error of 9.62 nGy/h the range falls between 26.67-123.85 nGy/h. The mean effective dose rate was estimated to be 0.675 mSv/year with a standard deviation of 0.234 mSv and standard error of 0.068 mSv and in range between 0.183-0.867 mSv. The mean annual effective dose rate from this work is lower than the 1mSv/year recommended by ICRP for public radiation exposure control.
Key words: Absorbed dose rate, effective dose rate, neutron activation analysis, radionuclides, , ,
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Cite this Reference:
Y.I. Zakari, R. Nasiru and M.A. Abdullahi, . Determination of Absorbed and Annual Effective Doses around Birnin Gwari Artisanal Goldmine, Kaduna State, Nigeria. Research Journal of Environmental and Earth Sciences, (05): 252-255.
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ISSN (Online): 2041-0492
ISSN (Print): 2041-0484 |
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