Modernization of Background of Natural Radioactivity in North Western Coast, Egypt

Naturally occurring radionuclides of terrestrial origin are present in the earth’s crust since its origin. These primordial radionuclides have sufficiently longer half-lives, that they survived since their creation and decaying to attain the stable state Radionuclides from the natural decay series (238U, 232Th and 235U) are present in the environment in different forms and quantities. Together with 40K, considerable amounts of these natural radionuclides and their daughter products can be found in soil wiThis present study assesses the specific activities and examines some of the radiation hazard indices of these naturally occurring radionuclides (226Ra, 232Th, 137Cs and 40K) in soil, sediment, plant and water samples in the study area in north Al-Mathany