Image:US homes over recommended radon levels.gif

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Description

Predicted fraction of homes exceeding the EPA's recommended action level of 4 pCi/L

Source

http://eetd.lbl.gov/IEP/high-radon/frac4.htm

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current06:45, 14 February 2008656×453 (36 KB)Nergaal (Talk | contribs) ({{Information |Description=Predicted fraction of homes exceeding the EPA's recommended action level of 4 pCi/L |Source=http://eetd.lbl.gov/IEP/high-radon/frac4.htm |Date= |Location= |Author= |Permission= |other_versions= }})

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