Radon detectors are widely used for research and for monitoring indoor and outdoorradon. During some applications, detectors need to be enclosed in barrier bags which arecompletely transparent to radon. In other applications, radon detectors need to beenclosed in barrier bags that are opaque to radon. In certain applications, barrier bagsmay provide resistance to human manipulat...

Background: Separate radon and thoron measurements in soil are very important in assessment of internal exposure due to inhalation of such radioactive gases. Materials and Methods: In this study, a low cost, small size, passive diffusion chamber has been developed for simple measurement of Radon-222 and Radon-220(Thoron) gases separately in soil. The diffusion chamber consists of two films and ...

A simple method employing a pair of pancake-style Geiger-Mueller (GM) counters for quantitative measurement of radon activity concentration (activity per unit volume) is described and demonstrated. The use of two GM counters, together with the basic theory derived in this paper, permit the detection of alpha particles from decay of 222 Rn and progeny ( 218 Po , 214 Po ) and the conversion of th...

Noting a negative correlation between average radon levels and lung cancer mortality in Montana counties, Hart (2011) “questions the notion that radon is deadly in Montana.” Results from a much larger ecological study of the correlation between county radon levels and lung cancer mortality across the whole United States were published in the 1990s (Cohen 1990, 1995). Like Hart, Cohen found an i...

BACKGROUND Radon exposure is the second cause of lung cancer after exposure to tobacco smoke and the first cause in nonsmokers. The purpose of this study was to assess perceived risk of exposure to indoor residential radon among health care providers in urban and rural health centers affiliated to Tehran University of Medical Sciences. METHOD In 2012-2013, a survey was carried out on 462 heal...

The article gives research data of indicators sanitary state the soils in Rivne region as for content microelements and heavy metals, such boron, manganese, zinc, cupre, plumb, cadmium, radiative caesium-137 soils, density radon flow out their surface, level its ecological safety. It is recommended to carry estimation safety districts, stimulators boron manganese according dependencies which ha...

Background: The aim of this study is to measure the level of radon gas in the thermal springs of the four seasons in the Black Sea Region and to determine the gamma activity levels in the soils around them. Materials and Methods: Indoor radon activity concentrations of four spa facilities, namely Ladik, Havza, Ilıcaköy, and Ayder, were measured using CR-39 passive radon dosimeters and active ra...

Kentucky leads the nation in both lung cancer incidence and percent smoking. In addition, many of the counties have average radon levels above the Environmental Protection Agency recommended action level. Guided by the Precaution Adoption Process Model, the purposes of this study were to: 1) examine the relationship between synergistic risk perception (radon plus tobacco smoke) and intention to...

Radon is a noble gas formed from the natural radioactive decay of uranium (U) and thorium (Th), natural components of the earth’s crust, which decay to radium (Ra) and then to radon (Rn). Decay chains include Ra and Rn for U; Ra and Rn for U; and Ra and Rn for Th. As radium decays, radon is formed and released into pores in the soil. Fissures and pores in the substrate allow the radon to migrat...