نتایج جستجو برای: natural radioactivity hazard
تعداد نتایج: 552402 فیلتر نتایج به سال:
Transfer of metals from soil to plant is an important pathway human exposure environmental contaminants. In this study accumulation different was investigated and natural radioactivity levels were measured in the soil–thyme system. Results showed that concentration Br, Cr, Mn, Ni, Pb higher than World average value, P, Ca, Zn have transfer factors. The level soils similar average. For thyme sam...
Background: The radioactivity levels in sediment and rock samples of İkizdere and Kaptanpaşa Valley have been determined. To our knowledge, there seems to be no information about radioactivity level in the İkizdere and Kaptanpaşa Valley sediments and rocks so far. Materials and Methods: The average radium equivalent activity (Raeq), the total absorbed dose rate (D), the external risk index (Hex...
Introduction Artificial and natural radionuclides are found in diverse environmental compartments, such as water, soil, rocks, vegetables, animals, and human body tissues. As such, humans and environments are at constant exposure of these radiation types. In this research investigated specific activities of radionuclide and dose assessment of some species of mushrooms. Materials and Methods In ...
The naturally occurring primordial radionuclides in coals might exhibit high radioactivity, and can be exported to the surrounding environment during coal combustion. In this study, nine coal samples were collected from eastern Yunnan coal deposits, China, aiming at characterizing the overall radioactivity of some typical nuclides (i.e., 40K, 238U, 232Th, 226Ra) and assessing their ecological i...
The level of natural radioactivity in black sand and sediment samples collected from Temsah Lake beaches of the Suez Canal district, Egypt were investigated. The natural activity concentration of Ra, U, Th and K for 20 black sand and 20 sediment samples were determined using gamma spectrometers based on HPGe detector with low background gamma-ray counting system. For assessing the environmental...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید