When compared to indoor radon concentrations, outdoor radon levels are generally low. Within the vicinity of a radon mitigation system, however, exhausted radon may cause unnaturally high levels of outdoor radon. A study was conducted over a period of three weeks on a home with a subslab depressurization mitigation system measuring outdoor radon concentrations correlated with wind speed. The da...

Introduction: Radioactive material is always present in the environment, and the largest contribution to the inhalation exposure comes from the short half-life decay products of radon. Accordingly, the concentrations of radon were measured in the milk and tea samples collected from Misanmarkets in Iraq. Material and Methods: A total of 2...

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...

background: a substantial part of the public’s natural radiation dose is due to the inhalation of radon gas. most of the exposure occurs indoors where the airborne concentration of radon and its decay products is usually higher than outdoors. materials and methods: radon activity concentration has been measured twice in 50 classrooms in 5 levels (10 each) during summer and winter using solid-st...

Radon concentrations and fluxes were measured for seasonal snowpack on Baldpate Mtn. in Newry, Maine during the winter of 2004. A solar radiation and temperature logging system was developed to monitor the snowpack during the radon measurements. Radon ground flux measurements were performed using a RAD-7 alpha spectrometer and ranged from 0.49 to 0.64 pCi m s for two different locations. Radon ...

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...

Exposure to radon gas is the second most common cause of lung cancer after smoking. A large number of studies have reported that exposure to indoor radon, even at low concentrations, is associated with lung cancer in the general population. This paper reviewed studies from several countries to assess the attributable risk (AR) of lung cancer death due to indoor radon exposure and the effect of ...

The objective of this research paper is to create a public awareness in understanding the radon gas problem, discuss efficient data management methods and analyses of indoor radon gas concentrations, and mitigate the indoor radon gas concentrations to below acceptable level in the state of Ohio. The Ohio Radon Information System (ORIS) is a compendium of five databases or modules, viz. the “Hom...