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Abstract : |
Indoor radon survey in a total of 241 dwellings, distributed in some regions of Yemen was performed, using CR-39 based radon monitors. The objective of this radon survey is to get representative indoor radon data of three regions, namely Dhamar, Taiz and Hodeidah, situated at different altitudes above sea level. The radon concentrations varied from 3 to 270 Bq m(-3) with an average of 42 Bq m(-3). It was found that the average radon concentration in the surveyed areas increases with altitudes. The highest average radon concentration of 59 Bq m(-3) was found in Dhamar city while the lowest average concentration of 8 Bq m(-3) was found in Hodeidah city. (C) 2003 Published by Elsevier Ltd., |
