Although the principal means to confirm indoor radon involves testing buildings, soil-based investigations are of value in identifying land areas that pose special concerns. Ideally, soil-based measurements would relate to radon production, diffusive transport, and convective transport into buildings. This paper briefly reviews technologies for measuring radon in soil gas, radon flux, and soil ...

Radon is a natural and radioactive gas that can accumulate in indoor environments. Indoor radon concentration (IRC) influenced, among other factors, by meteorology, which the subject of this paper. Weather parameters impact levels have already been investigated, but rarely Switzerland. Moreover, there strong need for better understanding behaviour inside buildings Switzerland public health conc...

Long-term exposure to elevated indoor radon concentrations has been determined to be the second leading cause of lung cancer in adults after tobacco smoking. With the establishment of a National Radon Program in Canada in 2007 thousands of homes across the country have been tested for radon. Although the vast majority of people are exposed to low or moderate radon concentrations; from time to t...

Abstract Radon is a noble gas that occurs naturally as decay product of uranium. Aside from smoking, radon considered to be one the major causes lung cancer. Indoor environments, where can accumulate and potentially reach high concentrations, are particular concern. A mixed effects additive model along with data-driven cross validation selection method applied mean indoor concentration dwelling...

Indoor radon activities were measured during a period of 6 months, as well as several physical environmental variables (temperature, pressure, humidity and rainfall). The location was a small room at an administrative building of the University of Coimbra, usually undisturbed by human activities and situated over bedrock of low-uranium Triassic red sandstones. A low average activity of radon wa...

Enhanced indoor radon levels are frequently found in the western part of the Swiss Jura mountains, a karst region. The activity in the limestone bedrock is low ( 20 Bq/kg). In the thin soil overburden the =Ra activity concentration is 2 to 3 times higher than in soil samples from the Swiss Plateau but on the average still below 100 Bq/kg. It is supposed that the radon problem in this region is ...

With the improvement of people's requirements for living environment, effect indoor radon radioactivity on health has been widely concerned. In this paper, taking a university in Shanghai as an example, concentration and its related environmental parameters were measured some houses to understand level campus. The results show that average concentrations student dormitory, office building, acad...

One of the essential parameters influencing of the dose conversion factor is the ratio of unattached short-lived radon progeny. This may differ from the value identified for indoor conditions when considering special workplaces such as mines. Inevitably, application of the dose conversion factors used in surface workplaces considerably reduces the reliability of dose estimation in the case of m...

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 ...

This study correlated lung cancer (LC) mortality with statistical data obtained from government public databases. In order to asses a relationship between LC deaths and radon accumulation in dwellings, indoor radon concentrations were measured with passive detectors randomly distributed in Chihuahua City. Kriging (K) and Inverse-Distance Weighting (IDW) spatial interpolations were carried out. ...