Open AccessRadiological Hazard Resulting from using Ceramic Tile in Egypt
Author(s) -
M.A.M. Uosif,
Mohamed Omer,
Nagwa A. Ali,
A. H. El-Kamel,
M. A. Hefni
Publication year - 2015
Publication title -
international journal of advanced science and technology
Language(s) - English
Resource type - Journals
eISSN - 2207-6360
pISSN - 2005-4238
DOI - 10.14257/ijast.2015.80.02
Subject(s) - radiological weapon , effective dose (radiation) , radionuclide , equivalent dose , natural radioactivity , tile , environmental science , nuclear medicine , hazard ratio , radiochemistry , radon , medicine , physics , mathematics , confidence interval , chemistry , nuclear physics , statistics , geography , archaeology , dosimetry
In this study the radiological hazard Resulting from the using of ceramic tile locally produced and commonly used as building materials in Egypt have been done by determining the contents of natural radionuclides ( 226 Ra, 232 Th and 40 K) by using gamma spectrometry (HPGe) detector. The measured average activity concentrations of 226 Ra, 232 Thand 40 K were 47.4±3.3, 42.84±2.8 and 313.6±34.3 Bqkg -1 respectively. The obtained concentrations were compared with the reported data of other countries. The Raeq values of all samples were lower than the limit of 370Bq.kg -1 , equivalent to a gamma dose of 1.5 mSv.a -1 recommended by OECD. With average total annual dose being only 0.07mSv y -1 , this value is about 7 % of the 1.0 mSv y -1 recommended by the International Commission on Radiological Protection (ICRP-60, 1990) as the maximum annual dose to members of the public.
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