222Rn financial definition of 222Rn
radon (redirected from 222Rn)
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Colorless, odorless gas that occurs naturally due to the breakdown of minerals in the earth. It tends to become trapped in our modern, nearly air-tight homes. Since there has been some correlation between radon and lung cancer, the EPA recommends levels no higher than 4 picocuries per liter (pCi/L), although generally acceptable levels are in the range of 4 to 8 pCi/L. The EPA Web site at www.epa.gov has information on testing for radon and reducing it.
References in periodicals archive
Measurements of 220Rn and 222Rn
and CO2 emissions in soil and fumarole gases on Mt.
(Radon-222 or radon), a known carcinogen, is a naturally occurring radionuclide and Idaho is one of the states that has a relatively high concentration of 222Rn
226]Ra was evaluated from the 352 and 611 KeV peaks of 214Pb and 214Bi, daughter products of the 222Rn
in equilibrium with the [sup.
Measurements the exhalation rate of 222Rn
from solid samples.