Assessment of natural radioactivity in various commercial tiles used for building purposes in Nigeria

Joel, E. S. and Maxwell, Omeje and Adewoyin, O.O and Ehi-Eromosele, C. O. and Embong, Z. and Oyawoye, F. (2018) Assessment of natural radioactivity in various commercial tiles used for building purposes in Nigeria. MethodsX. pp. 8-19.

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Abstract

In this study,we evaluated the activity concentration of natural radionuclides(226Ra, 232Th and 40K) for fifteen (15)differentbrandsoftilesamplesusedforbuildingpurposesinNigeria.Thetilesampleswereanalyzedusing High purityGermaniumgammadetector.Themeanactivityconcentrationsof 226Ra, 232Th, and 40Kwereobserved to be61.1 �5.5 Bq/kg,70.2� 6.08 Bq/kgand514.7 � 59.8 Bq/kgrespectively.Varioushazardindicessuchas absorbed doserate,external and internal hazardindex,annual effectivedoserate,Gamma activityIndex(Ig) and Alpha Index(Ia) werecalculated.The obtained resultsshowedthatthemeanradiumequivalentactivity(Raeq), the absorbeddoserate(D),external andinternalhazardindex,the annualeffectivedose(AEDR)equivalent, Gamma activityIndex(Ig) andAlphaIndex(Ia) were:204.42Bq/kg,177.61nGyh�1, 0.55,0.77,0.96mSvyr�1, 0.74and0.32respectively.Theaveragevalueofradiumequivalentobtainedinthisstudyislessthanthatofthe

Item Type:	Article
Subjects:	UNSPECIFIED
Divisions:	Faculty of Engineering, Science and Mathematics > School of Chemistry Faculty of Engineering, Science and Mathematics > School of Physics
Depositing User:	Mrs Patricia Nwokealisi
Date Deposited:	19 Mar 2018 16:09
Last Modified:	19 Mar 2018 16:09
URI:	http://eprints.covenantuniversity.edu.ng/id/eprint/10422

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