background: several epidemiological studies conducted on underground miner’s show that exposure to elevated levels of radioactive radon gas is expected to increase the risk of lung cancer. relative risk of lung cancer is almost linear with radon exposure. elevated concentrations of radon are not only reported within mines but also for closed indoor environment of general public houses. measurem...

Indoor radon measurements in some dwellings of Rajasthan and Delhi areas have been carried out using LR-115 type II Cellulose Nitrate films in the bare mode. The Radon values vary from 22.30 Bq/m to 219.3 Bq/m in the Delhi region and 55.76 Bq/m to 107.80 Bq/m in the Rajasthan areas, which is well within the recommended action level. The Radon concentration in water samples of some locations of ...

PURPOSE/OBJECTIVES To gather data on radon levels and determine correlations among subjects' characteristics, willingness to test for radon, and perceptions of radon as a health risk. DESIGN Descriptive correlational. SETTING Rural DeKalb County in northern Illinois. SAMPLE 473 respondents from a group of 1,620 randomly selected county residences. METHODS Participants were surveyed via ...

INTRODUCTION Naturally occurring radon gas has been shown to cause increased numbers of lung cancers in miners when present at high levels in underground workings (1). Radon has a variable geological distribution across the UK with some counties having elevated levels in the built environment. Radon, due primarily to the stack effect, concentrates inside buildings. Interpolation of the miners d...

Starting in December, 1996 and continuing through April, 1998, the Tennessee Radon Program, USEPA Region 4 Office, the Southern Regional Radon Training Center, and USEPA Headquarters conducted an investigation of several houses in Livingston, TN in which homeowners had discovered indoor radon concentrations far in excess of their original postmitigation test levels. The investigation team condu...

In the UK, the Action Level for radon gas in domestic buildings has stood at 200 Bq.m for many years. Some years ago, our group made an extensive study of 7-day, 1-month and 3-month measurements in thirty-four un-remediated dwellings in a high-radon area over a full year. It was shown that one-week exposures were less reliable indicators of the long-term radon level, but that this variability w...

Radon has been identified as the second leading cause of lung cancer after tobacco smoking. (222)Rn (radon gas) and (220)Rn (thoron gas) are the most common isotopes of radon. In order to assess thoron contribution to indoor radon and thoron exposure, a survey of residential radon and thoron concentrations was initiated in 2012 with ∼4000 homes in the 33 census metropolitan areas of Canada. The...

Earthquake prediction has two potentially compatible but distinctly different objectives: (a) phenomena that provide information about the future earthquake hazard useful to those who live in earthquake-prone regions and (b) phenomena causally related to the physical processes governing failure on a fault that will improve our understanding of those processes. For seismic hazard analysis in Vra...

BACKGROUND Radon, a naturally occurring radioactive gas, is a carcinogen that causes a small proportion of lung cancers among exposed populations. Theoretical models suggest that radon may also be a risk factor for skin cancer, but epidemiologic evidence for this relationship is weak. In this study, we investigated ecologic associations between environmental radon concentration and the incidenc...