Environmental Hazards of Radioactive Radiation from Granite Building Stones Through Buien's Granite Mass in Iran

Relatively high levels of radon emissions are associated with particular types of rocks such as granites. because of chemical composition of granite, it sends out radioactive radiations. in recent years, regardless of its hazards demand have increased for these stone types. in this paper, health hazards of granite were assessed in terms of its radon gas emission. the radon gas was analyzed in samples collected frombuien- miyandasht`s granite mass in isfahan province, central iran.the result ofthis survey shows that radon content in some local stones used as basementsare extremely high and these samples are main sources of indoor radon emanation.