نتایج جستجو برای: radionuclides dosage radiation health risk
تعداد نتایج: 2067410 فیلتر نتایج به سال:
BACKGROUND The Fukushima Dai-ichi nuclear disaster, the first level-7 major nuclear disaster since Chernobyl, raised concerns about the future health consequences of exposure to and intake of radionuclides. Factors determining the risk and level of internal radiation contamination after a nuclear accident, which are a key to understanding and improving current nuclear disaster management, are n...
Background: There have been growing concerns about environmental pollution and public health issues associated with metal(loid)s and radionuclides. As a baseline for monitorisation, radioactivity and specific metal(loid) levels have been measured to investigate the estimated environmental health risks in Igdir province at the Turkish side of the border, in the vicinity of the Metsamor Nuclear P...
Minerals, depending on their composition and origin, contain some radioactive nuclides. Presence of such radionuclides such as 238U, 232Th and 40K in materials are dangerous when they are highly concentrated and influence on human exposure. Bauxites as a raw material for aluminum may contain relatively high amount of those radionuclides, which are more concentrated in remained red-mud after Al ...
36 I ublic awareness about exposure to natural sources of radiation has been growing in recent years at a rather accelerated pace. Exposure to high levels of radon indoors, for example, has drawn considerable attention, and a number of countries have already adopted regulatory measures to mitigate exposure to radon in existing houses and to establish radon limits for new buildings. Another area...
Radionuclide concentrations in the soil depend on geological and anthropogenic activities of an area. They influence level gamma radiation environment, which can cause significant health risk humans. Due to non-uniform distribution radionuclides soil, various measurement methods have been adopted monitor our environment. The challenges involved collecting environmental samples, duration, techni...
Accidental or intentional release of radioactive materials into the living or working environment may cause radioactive contamination. In nuclear medicine departments, radioactive contamination is usually due to radionuclides which emit high energy gamma photons and particles. These radionuclides have a broad range of energies and penetration capabilities. Rapid detection of radioactive contami...
It is a well known fact that radiation doses from the use of ionizing radiations and radionuclides in medical diagnosis and treatment are the largest contribution to the collective dose from all man-made sources of radiation, occupying about 15% of the total collective dose, and rapidly increase over the world, due to their relatively high frequency. From this, it is obvious that medical use of...
There is considerable interest in the chemical composition of smokeless tobacco products (STPs), owing to health concerns associated with their use. Previous studies have documented levels of 210Po, 210Pb and uranium in STP samples. Here, the levels of 13 α-particle and 15 β-radiation emitting radionuclides have been measured in a broad and representative range of contemporary STPs commercially...
AIM On the basis of the cytogenetic research, to develop and validate the strategy of the measures to prevent the stochastic effects of low-doses radiation on humans. METHODS Test system with human peripheral blood lymphocytes, metaphase analysis of chromosomal aberrations was used. Cells were cultured according to the standard procedures with modifications. The analysis of painted chromosome...
We run the risk that terrorists will decide to detonate an explosive device laced with radioactive materials (a radiological dispersal device, or RDD). If such an attack occurs, it is unlikely that the affected population or emergency responders would be exposed to high levels of external radiation, although airborne radionuclides may present a health risk under some circumstances. However, the...
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