Journal
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
Volume 273, Issue 3, Pages 539-541Publisher
SPRINGER
DOI: 10.1007/s10967-007-0905-7
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The main component of most building materials in Malaysia is rock. All rocks are known to contain natural radionuclides such as(238)U and Th-232 series as well as K-40. In order to estimate the radiological impact to the dweller, the level of radionuclides present in various building materials available in Malaysia were analyzed using gamma-spectrometry. The radiation hazard indexes were calculated based on the above results. The results showed that the activity concentration of natural radionculides(238)U, Th-232,K-40 was between 19.0-42.2 Bq/kg, 16.5-28.8 Bq/kg and 243.3-614.2 Bq/kg, respectively. On the whole, the radionuclides concentration was still below the global average of 50 Bq/kg, 50 Bq/kg and 500 Bq/kg for U-238, Th-232, and K-40, respectively The radiation hazard indexes of the building materials were also lower than the maximum value suggested.
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