to assess the environmental radioactivity levels and hence to determine the population exposure in kutubdia island, bangladesh the sediment samples were analyzed by using gamma ray spectrometry. in those sediment samples the average activity concentration of natural radionuclides 238u, 232th and 40k were found 15.39±1.67, 38.35±0.76 and 475.51±21.15 bq/kg respectively. the activity concentratio...

Basic radiological factors of the Chernobyl accident are reviewed such as radioactivity discharge, the size of contaminated area, radiation dose, radiation risk assessment etc. Roughly estimating, 50-60 % of I and 30-50 % of Cs in the reactor core were released into the environment, which correspond to 40-50 MCi and 2-4 MCi, respectively, as the activities at the time of the accident. The total...

â  introduction â  ethnic disputes and collective aggressions are observable in each period of history and are more evident in traditional and nomadic communities. this issue has had many life and property damages in the past and present times and it has also prevented social development to flourish. based on the damages of collective aggression, the researchers attempt to study the fundamental...

Background: The annual effective dose equivalent (AEDE) due to ionizing radiation in a coaster area in Nigerian has been determined using Geiger-Muller counter. Materials and Methods: isolevels in the study area were represented by using the kriging interpolation technique on ArcGIS 10.1 software. Duncan multiple range test was performed using Statistical Package for Social Sciences (SPSS). Res...

the presence of radon in drinking water causes health risks associated with exposure from both inhalation and ingestion. since the studies show that faults near the water resources have a critical effect on the concentration of radon, kouhbanan active fault zone, to find water resources  with high radon concentration was chosen for the following investigation. water samples were taken from all ...