radon

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radon

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.

The Complete Real Estate Encyclopedia by Denise L. Evans, JD & O. William Evans, JD. Copyright © 2007 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
222Rn (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 in groundwater.
Spatial correlation between radon (222Rn) in groundwater and bedrock uranium (238U): GIS and geostatistical analyses.
Considering the appropiate correction for laboratory background, the activity of [sup.137]Cs was determined from the 661 KeV peak, [sup.210]Pb from the 46.5 KeV one, and [sup.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.226]Ra (Wallbrink et al., 2002).