The radon concentration in the average UK home is about 20 becquerels per cubic metre.
Miners became exposed to high levels of radon and suffered increased rates of lung cancer.
In the U.S. you won't yet find radon offered at Canyon Ranch--but never say never.
There is radon at spas in Bad Brambach, Germany, and Ischia, Italy, among other places.
Radon is a gas, a product of decaying radium and an emitter of particles.
We need a stronger effort, for example, to give homeowners tax incentives to combat radon.
This was true even in areas with high levels of both radon gas and gamma radiation.
In the big mines in the USA, the lung complaints caused by radon were referred to as "mountain sickness".
Now some scientists are giving radium, radon and other toxins a second look.
It disrupts pastoralists herding their cattle and can leak radon and other gases.
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Uranium is so close to the water table such that by-products like radium and radon are already in the water.
As for updating the periodic table, element 118 would slot in just below radon in the column that contains inert gases.
In southwestern Montana there are five underground radon facilities--some former uranium and silver mines--which together welcome upwards of 1, 000 health-seekers per year.
Radon's a very preventable domestic cause of cancer that kills, the EPA says, as many as 20, 000 or 30, 000 Americans every year.
"It's more homey than luxurious, " says Pollycove, who visited the Free Enterprise Radon Health Mine in Boulder, Mont. once to lecture on hormesis.
The most effective way to deal with radon is to fit an air pump to a property to vent the gas into the atmosphere.
The Environmental Protection Agency consistently ranks hazardous-waste sites as less harmful to human health than radon, outdoor particulate pollution or working exposure to pesticides.
The dangers of radon became very apparent after World War Two when large uranium mines were opened around the world to feed the nuclear industry.
That assumes you spend 12 hours in the radon-laden air daily.
Scientists from the UK Childhood Cancer Study, measured radon and gamma rays in the bedrooms and living rooms of 2, 226 children with cancer and 3, 773 healthy children.
For radon-infested bathwater, the "good" level could be much higher.
Dr. GERBER: It's approximately four times the natural radiation dose that we all receive annually in the Unites States, as a result from background radiation due to radon and other materials.
Dr Siegfried believes the hormone may exacerbate the effects of exposure to tobacco smoke - and to other substances known to be linked to lung cancer such as the gas radon.
Radon and carbon monoxide detectors can pick up odors that would normally be undetectable to our noses and net guns allow soldiers and SWAT teams to ensnare enemies just like Spiderman.
Yet at hot springs and thermal spas where radon typically is found in the air or water along with carbon dioxide, sulphur gases and trace elements of other minerals, health-seekers sing its praises.
The Environmental Protection Agency calls radon "extremely toxic, " and the Harvard Center for Risk Analysis in 1998 listed it as the most frequent cause of premature death from a hazard in the home.
Also given that the fuels can be potent sources of Radon the flimsy construction advocated by some as a benefit to lowering construction costs is dubious concerning containment concerns and control of potential gaseous emissions.
Patrons go below ground to play cards, sleep, exercise and work on laptops--all the while inhaling air that can have 1, 700 picocuries of radon per liter (about 1, 300 times as much as air in the average home).
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