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Astronuc
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Jan30-07, 09:04 PM
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Quote Quote by Mr_Bojingles View Post
I meant radon gas not radiation gas. What Im wondering is why Uranium deposits emit radon gas. The only thing I can think of is that its created by the decay of the Uranium.
Radon is an intermediate step in the decay chains of several actinides.

U235 - http://hyperphysics.phy-astr.gsu.edu...radser.html#c1

Th232 - http://hyperphysics.phy-astr.gsu.edu...radser.html#c2

U238 - http://hyperphysics.phy-astr.gsu.edu...radser.html#c3 (at two points)

Uranium is found at low levels in the Appalacian mountains, the western mountain states, and the northern/midwestern US.

http://www.epa.gov/iaq/radon/zonemap.html

Of course, it's higher in certain deposits which are mined for the very reason that the Uranium content makes it economical to mine.