Abstract
The natural radioactivity and potential radiological hazards of commonly used construction materials in Anhui, China were studied. The activity concentrations of 226Ra, 232Th and 40K were determined by high-purity germanium gamma ray spectrometer. The activity concentrations of 226Ra, 232Th and 40K in the construction materials range from 12.4 to 66.4, 19.3 to 87.7 and 185 to 921 Bq kg−1, respectively. The study on distribution characteristics of radionuclides showed a significant variation of activity among different materials. The radium equivalent activity, external hazard index and annual effective dose were calculated to evaluate the potential radiological hazards.
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