Radon Abatement: Removing Radioactive Gas From Your Home

High levels of radioactive gas may be in up to 25 percent of all U.S. homes, the article includes where does radon come from, levels of radon in the home, and Radon abatement techniques.

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Radon enters a home primarily through its floor and foundation, though building materials and water may also be sources.
ILLUSTRATION: MOTHER EARTH NEWS STAFF