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About:
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Radon exists in every U.S. state, and also roughly 6% of all American residences have raised levels. The greatest average radon concentrations in the United States are discovered in Iowa and also in the Appalachian Mountain locations in southeastern Pennsylvania. Some of the highest analyses have actually been tape-recorded in Mallow, County Cork, Ireland. Iowa has the highest ordinary radon concentrations in the United States as a result of considerable glaciation that ground the granitic rocks from the Canadian Guard and transferred it as soils composing the abundant Iowa farmland.
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