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.

References in periodicals archive ?
In the UK, exposure to indoor radon is responsible for around 1,100 lung cancer deaths each year, according to the NRAP.
The NRAP outlines the government's plan for monitoring and reducing radon levels in homes.
Fortunately, she adds, radon in indoor environments is relatively easy to reduce to minimal levels, even if it cannot be eliminated altogether.
Public Health Wales said: "The radioactive elements formed by the decay of radon can be inhaled and enter our lungs.
Residents of the HBRAs are exposed to indoor radon ([sup.222]Rn) levels up to 31 000 Bq/[m.sup.3] [15], which is more than 200 times higher than the action level suggested for radon by the United States Environmental Protection Agency (US EPA) (148 Bq/[m.sup.3]) [16].
However, no study has yet directly assessed the difference in this sensitivity between strains with respect to the effects of radon inhalation on the CDDP-induced renal injury.
When the ground around a house is frozen and covered with snow, it leads to a greater concentration of radon in a house because the radon is unable to escape through the ice, and takes the easier path through the soil under the home.
Prerequisites for testing include having knowledge of radon, incentive to test, and the financial means to perform the test and mitigate for radon if necessary.
"We found then this huge level of radon gas in the house." The Castleisland couple died within a few years of one McCrea another and a survey showed one of the highest values recorded in Europe.
"For this reason we advise all householders to test their homes for radon and, if high levels are found, to have their houses fixed."
LR115 films based pinhole dosimeters [17] were used for the passive measurement of radon and thoron concentration.
Radon could provides a valuable reference for the exploration of uranium resources.