Assessment of Radiation Hazard Indices Due to Natural Radionuclides in Soil Samples from Imo State University, Owerri, Nigeria.

A total of 30 soil samples from different sampling points at Imo State University (IMSU), Owerri, Nigeria were collected for the study. The activity concentrations of naturally occurring radionuclides (U, Th, and K) were measured in the samples by gamma-ray spectrometry using NaI (TI) detector. Absorbed dose rate (D), annual effective dose (AED), radium equivalent activity (Ra), and radiological hazard index parameters (activity utilization index [AUI], external hazard index [H], internal hazard index [H], and excess lifetime cancer risk [ELCR]) due to the naturally occurring radionuclides were determined.

Radionuclide contents in sediment and seafood from Makoko Lagoon, Lagos State, Nigeria.

Sediment and seafood samples were collected from Makoko Lagoon, Lagos state, Nigeria. Gamma-ray spectrometry was used to determine the activity concentrations of K, Ra and Th in the samples. The average activity concentrations of K, Ra and Th in the sediment were 41.

Radiological Dose Assessment due to the Presence of Norms in the Top Soil of the Imo State Polytechnic, Imo State Nigeria.

A study on the radiological dose assessment due to the presence of natural radionuclides in the top soil of Imo state Polytechnic was carried out using a gamma spectroscopic method. From the activity concentrations of natural radionuclides in the topsoil, the absorbed dose rate and annual effects of doses were established. The activity concentrations ranged from 59.

Radioprotective potential of Costus afer against the radiation-induced hematological and histopathological damage in mice.

Purpose: This study investigated the possible radioprotective effect of Costus afer extract (CAE) on hematological and histopathological parameters of mice.

Materials And Methods: Fifty-four male mice with mass between 37-43 g, 11-13 weeks old were used for this study. We divided the mice into six different groups containing nine animals, which were then further sub-divided into irradiated groups and un-irradiated groups.