RADIOACTIVITY ANALYSIS OF COMMONLY AVAILABLE BUILDINGAND FLOORING MATERIAL IN KERALA, INDIARani K. Pillai and P. RejaniAbstract Building materials are primary sources of indoor gamma radiation. Therefore, we have made a detailedstudy of building materials which are being used extensively in the region. Primordial radionuclides namelyuranium (238U), Thorium (232Th) and potassium (40K) were studied in the building materials. As of the resultsacquired, we can arrive at the following inferences: We have estimated specific activities of radionuclides,the radium equivalent and radiological risk parameters resulting from the gamma originating from buildingmaterials. The highest Radium equivalent activity was obtained for red clay brick and the minimum valueobtained was for M-sand. M-sand is processed sand being used widely now a days in the region. Most ofthe building materials were found to have very low levels of Radium. As of the results we obtained, noneof the building materials were found to pose any notable radiological health hazard. |