File:Radon Level.jpg

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Summary

Established % Homes that Exceed EPA's Recommended Level for Radon

[Norman, 1999] Donald Norman. Things That Make Us Smart. Addison Wesley. 70, 1993.

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	Date/Time	Thumbnail	Dimensions	User	Comment
current	13:33, 28 November 2007		800 × 668 (170 KB)	ASchratt (talk \| contribs)	Established % Homes that Exceed EPA's Recommended Level for Radon

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