This analysis of 238U, 226Ra and 210Pb transfer factors from the soil to leaves different native broadleaf trees at sites previously modified by uranium presence site background radioactivity levels, was conducted using data a few available studies literature. The tree species Quercus ilex, suber, Eucalyptus camaldulensis, pyrenaica, ilex rotundifolia, Populus sp. botryoides Sm. affected Tilia ...

Rice (Oryza sativa) is an important source of human internal exposure to radionuclides and heavy metals because, worldwide, a large fraction the population consume rice as their daily basic diet. In this study, levels correlation natural radioactivity (232Th, 226Ra 40K) (Pb, Ni Cd) in local sold Enugu urban markets, southeastern part Nigeria, were examined. Possible health implications also eva...

Nkamouna-Kongo is a cobalt–nickel deposit located in Lomié, Eastern Cameroon. Mining creates radiation exposure pathways that must be considered risk management scenarios. RESRAD-ONSITE and RESRAD-BIOTA, developed by the US DOE, assess contaminated sites deriving cleanup criteria estimating dose associated with residual radioactive materials using site-specific parameters. This paper evaluated ...

The present study was carried out to determine the activity concentrations of 40K, 226Ra and 232Th in surface soil samples collected from twenty five different locations of Industrial Yanbu city located in western region of Saudi Arabia, using a NaI(Tl) gamma-ray spectrometer. The activity concentrations of 226Ra, 232Th and 40K in the soil samples from the studied area ranged from 25.21 Bq kg t...

In this study, a semi-empirical calibration method for NORM samples measurement by using LaBr3(Ce) scintillator was developed based on combination of experimental gamma spectrometry measurements and MCNP-X simulations. The aim work is to provide us with full energy peak efficiency curves in wide photon range which particular importance when selected energies 234Th, 214Pb, 214Bi, 228Ac, 208Tl 22...

We describe a new method suitable for the precise and accurate determination of 226Ra in porewater sediment samples using single-collector sector field ICP-MS (ThermoFisher Element XR) equipped with an Apex-Q desolvation device high-sensitivity Jet-X interface. In combination 230Th measurements parallel samples, this allows quantification 226Ra/230Th disequilibria surface cores, thereby enablin...