introduction natural and artificial radionuclides are the main sources of human radiation exposure. these radionuclides, which are present in the environment, can be dissolved into water. evidence suggests that radionuclides being entered the human body through drinking or hot spring water can be harmful for human health. materials and methods in this study,10 samples were collected from ground...

background: there is a rapid increase worldwide in the consumption of mineral waters which may contain different level of radioactive elements, especially 226ra, in addition to varying amounts of beneficial salts. therefore, a comprehensive study was planned and carried out in order to determine concentration of 226ra natural radionuclide in bottled mineral waters that commercially available in...

background: human is exposed to radiation in their environment with or without their consent and the exposure to natural background radiation is an unpreventable event on earth. materials and methods: an in situ assessment of the indoor and outdoor background radiation in akwanga and keffi towns of nasarawa state nigeria was carried out using a halogen-quenched geiger muller (gm) detector (insp...

background: radon is one of the most important radioactive elements which is released by natural decay of available uranium and radium in the ground. the presence of radon gas is common, wherever those faults are located there. radon concentration of various drinking water resources of bam villages; located near bam fault; was measured. materials and methods: this cross-sectional study was cond...

Introduction: Interventional angiography procedures are increasingly used today. These techniques require a long time of standing near the patient and x-ray tube which lead to increase the radiation-dose of the staff and interventionists. This may also, in turn, lead to the occurrence of radiation deterministic effects. Since a large number of interventional radiology were perf...

abstractbackground: as fluoroscopy or different angiographies are usually evaluated using tl dosimeter. thismethod is a time-consuming procedure therefore, radiologists are usually worried and unawareof their exact radiation dose received during each fluoroscopy or angiography. in this study, anew trend for quick estimation of effective dose based on measuring air-absorbed dose of thescattered ...

background: radioactive substances are water chemical contaminants. in this study, the concentration of radon was measured in drinking water supplies of taft villages (part of dehshir-baft fault located in central part of iran) and also shirkooh area with granite rocks (containing uranium). materials and methods: this cross sectional research was conducted in fall 2013 and winter 2014 on the so...

Background: Radon as a potential risk of radiation exposure is a natural radioactive element that can emit from rocks and soils. Due to solubility in water, it can be inhaled or consumed by the public. The purpose of this study was carrying out measurement and evaluation of radon concentration in samples of drinking water which are collected from water supplies of Borujerd. Materials and Method...

background: radium-226 (226ra) is a product of the 238u radionuclide decay series that significantly incorporated into the human body through water intake. it can also potentially cause a series of health problems including cancers of the digestive system. radium-226 (226ra) is a product of the 238u radionuclide decay series that significantly incorporated into the human body through water inta...