RadonResources.com provides all of the resources and information you need to make informed decisions about the deadly gas radon. Our site is full of information to help you learn everything you need to keep yourself, your family and your co-workers safe. Radon is the leading cause for lung...
radon. It seals the single largest radon entry point. Test to determine if radon is now at an acceptable level with that one action; if after testing you find that radon gas mitigation step wasn’t enough, your Dranjer valve is still an important component of your radon gas mitigation ...
rural community houses is relatively higher because radon-rich gas migration (from deeper geologic sources) occurs favorably in the annulus of drilled groundwater wells. The potentially very fast (i.e., km/day rates)74,75rates of buoyant free phase gas migration in the subsurface can permit loc...
SeriesLong-lived parentCrustal abundanceNoble gas member IsotopeHalf-life (years)μg kg−1Bq kg−1pCi g−1IsotopeHalf-life Uranium 238U 4.5×109 2.7 33 0.89 222Rn 3.82 days Thorium 232Th 14.1×109 8.5 34 0.92 220Rn 55.6 s Actinum 235U 0.7×109 0.02 1.5 0.04 219Rn 3.96 s Within ...
Click HERE to view their stories Yes Virginia, There Is A Radon Problem (but only if you ignore it!) One in four homes in Central Virginia has elevated radon levels as compared to one in fifteen nationally. This is an alarming fact that is not going away. Since this odorless gas causes...
Radon is a colorless, odorless, and tasteless[11] gas and therefore is not detectable by human senses alone. At standard temperature and pressure, it forms a monatomic gas with a density of 9.73 kg/m3, about 8 times the density of the Earth's atmosphere at sea level, 1.217 kg/m3.[12...
200–400 Bq/m3 for indoor air as an Action or Reference Level. If testing shows levels less than 4 picocuries radon per liter of air (160 Bq/m3), then no action is necessary. A cumulated exposure of 230 Bq/m3 of radon gas concentration during a period of 1 year corresponds to 1 ...
We found that radon gas levels in Aldama exceed the maximum permissible limits (USA: 148 Bq m−3). Levels were higher at night, and were above the maximum permissible level recommended by the International Atomic Energy Agency of the United Nations (<200 Bq m−3). Most residents in ...
Radon is a natural radioactive gas that is present in buildings and is the second cause of lung cancer after smoking [1,2]. For this reason, many countries have issued regulations or recommendations to limit radon concentration levels in workplaces and at home. In 1988, the International Ag...