نتایج جستجو برای: radionuclides dosage radiation health risk
تعداد نتایج: 2067410 فیلتر نتایج به سال:
A systematic radiological survey has been carried out in the region of high-background radiation area in Kollam district of Kerala to define the natural gamma-radiation levels. One hundred and forty seven soil samples from high-background radiation areas and five samples from normal background region were collected as per standard sampling procedures and were analysed for (238)U, (232)Th and (4...
Specific goals The new radiological protection system for the environment increases the need to estimate radiation doses to non-human biota in their specific environment. Therefore, reliable and realistic dose models are needed in risk assessments of biota. Current dose models for biota (e.g. ERICA, 2007) have been developed mainly to be used as a screening tool for the assessor and little guid...
This report provides estimates of the external radiation exposure and whole-body effective dose received by residents of the continental U.S. during the period 1951-1962 from weapons tests carried out at the Nevada Test Site (NTS). Estimates are given on a countyby-county basis for each test and for each year of testing. The average committed population dose from all NTS tests was about 0.5 mSv...
Soil acts as a source of continuous radiation exposure to human and as a medium of migration for transfer of radionuclides to the biological systems hence causes the radiological contamination in the environment. So, it is necessary to study the natural radioactivity in soil to assess the dose due to terrestrial gamma radiation levels in order to know the health risks. The Primordial Radioactiv...
This research aimed to assess the levels of natural radionuclides in soil Riruwai mining area and evaluate radiological hazards associated with them. A total sixty samples were collected from four sampling sites during dry wet seasons. The concentrations uranium-238 (238U), thorium-232 (232Th), potassium-40 (40K) measured using an HPGe gamma-ray spectrometer, used estimate internal external gam...
The Stepnogorsk area Northern Kazakhstan has a long history mining activities. Mining activities have lots of environmental and health impacts. aims this study were to characterizing the general radiological situation evaluate radiation exposure by scenarios in settlements. In assessment was performed for critical group living territory contaminated with radionuclides; working studying at schoo...
Natural and artificial ionizing radiation can be harmful to human health when they come into contact with people the environment. Transport of naturally occurring radioactive materials (NORMs) consumer products containing NORM in public domain is inevitable owing their potential applications. This study evaluates dose risk from transport accidents products. Radiological physical data were obtai...
Several United Nations organizations sought to dispel the uncertainties and controversy that still exist concerning the effects of the Chernobyl accident. A Chernobyl Forum of international expertise was established to reach consensus on the environmental consequences and health effects attributable to radiation exposure arising from the accident. This review is a synopsis of the subgroup that ...
Results of epidemiological studies of thyroid cancer incidence in Russia following the Chernobyl accident are presented in the article. Child population in territories contaminated with radionuclides who got thyroid dose from incorporated (131)I above 100-150 mGy, should be referred to a group at radiation risk. Prognostic estimates of increase in thyroid cancer incidence among the population l...
The present study aimed to measure the activity concentration of natural radionuclides in the locally used building materials from Kilpenthaur, Tiruvannmalai Dist, Tamilnadu, India was investigated with an aim of evaluating the radiation hazard arising due to the use of these materials in the construction of dwellings. The concentrations of natural radionuclides Ra, Th and K in four types of bu...
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