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| Date/Time |
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User |
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| 2008-02-14 06:45 |
656×453× (36811 bytes) |
Nergaal |
{{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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| Date/Time | Thumbnail | Dimensions | User | Comment |
| current | 15:30, 15 June 2015 |  | 656 × 453 (36 KB) | wikimediacommons>BD2412 | Transferred from en.wikipedia |
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