The aim is to compare lung cancer risks from radon in smoking categories in Czech residential radon and uranium miners studies and to evaluate interactions between smoking and radon exposure. The residential and occupational studies are based on one hospital based case-control study and three case-control studies nested within cohort studies, two among uranium miners and one in the general popu...

Introduction: This study was conducted to measure the gamma emitters (e.g., uranium-238 [238U], thorium-232 [232Th], and potassium-40[40K]) and alpha emitters (e.g., radon-222 [222Rn] and radium), and also to evaluate the radiation hazard indices of radionuclides in parenteral nutrition samples utilized in the hospitals of Iraq. Material and Methods: The measurements were accomplished using ga...

Awareness of the health risks due to exposure to indoor radon has raised concern about its impact in the general population. Using all available epidemiologic results, our goal is to accurately estimate this risk based on data collected in a high radon potential region of France (Franche-Comté). For this study, we considered exposure (response relations derived from cohorts of miners and from j...

ABSTRACT Background: and soils with which it comes in contact. There is dual exposure from radon in water i.e. due toinhalation of the radon released from the water into the ambient air and through ingestion whenwater is used for drinking. As radon contaminated water adversely affects the health, it istherefore fundamental from health and hygiene point of view to measure radium concentrationand...

An etched track detector has been developed for use in screening or indicative measurements of radon in homes over an exposure period of 14 days. If the annual mean radon concentration estimated from screening detector results is within a factor of two of the UK radon Action Level (200 Bq m(-3)), the householder is told that the result is uncertain, and advice on whether the home is above or be...

Introduction: Smokers and non-smokers are at the risk of developing lung cancer when exposed to alpha rays as a result of the relatively low levels of radium and radon that may be present in different tobacco species. There is a great interest in studies and research on the radionuclides in narghile tobacco emitting alpha particles to know the relationship between smok...

Solid state nuclear track detectors are commonly used for measurements of concentrations of radon gas and/or radon progeny. All these measurements depend critically on the thickness of the removed layer during etching. However, the thickness of removed layer calculated using the etching period does not necessarily provide a su7ciently accurate measure of the thickness. For example, the bulk etc...

High sensitivity detectors for radon in air and in water have been developed. We use electrostatic collection and a PIN photodiode for these detectors. Calibration systems have been also constructed to obtain collection factors. As a result of the calibration study, the absolute humidity dependence of the radon detector for air is clearly observed in the region less than about 1.6 g/m3. The cal...

Radon gas is colorless, odorless and tasteless and can only be detected by testing. It naturally occurs from traces of uranium in soils and rocks. It results from the decay of trace amounts of uranium, found in most rock and soil. It is measured using special monitors and expressed in units of bequerels per cubic metre (Bq/m3) or picocuries per litre (pCi/L). The air pressure inside the laborat...