Legality of Cannabis by U.S. Jurisdiction

US_homes_over_recommended_radon_levels.gif ‎(656 × 453 pixels, file size: 36 KB, MIME type: image/gif)

Summary

Description
English: Predicted fraction of homes exceeding the EPA's recommended action level of 4 pCi/L
Source http://energy.lbl.gov/ie/high-radon/frac4.htm
Author US EPA

Licensing

Public domain
Public domain
This image (or other media) is a work of an Environmental Protection Agency employee, taken or made as part of that person's official duties. As works of the U.S. federal government, all EPA images are in the public domain.
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Date/Time Dimensions User Comment
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/TimeThumbnailDimensionsUserComment
current14:30, 15 June 2015Thumbnail for version as of 14:30, 15 June 2015656 × 453 (36 KB)BD2412Transferred from en.wikipedia
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source: https://en.wikipedia.org/wiki/File:US_homes_over_recommended_radon_levels.gif