Abstract
This study aimed to assessment of the activity concentrations and radiation hazard indices with excess lifetime cancer risk (ELCR) in fourteen soil samples obtained from different localities, in Zintan City, Libya. The natural radionuclides have been measured by using HPGe detector with a specially designed shield. This study showed the activity concentrations of 226Ra, 232Th and 40K were lower than the world's average levels. The radium equivalent (Raeq) in Bq/Kg, external hazard index (Hex), radioactivity level index (Iγ), the absorbed dose rate (D) and the annual effective dose (AED) in outdoor environment were estimated. The excess lifetime cancer risk (ELCR) was found to be low for all the samples in the area under investigation which mean the soil of the study area does not pose any radiological hazard to the public and environment