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What are the causes of high radon gas levels?

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Quick Answer

The radioactive decay of uranium in soil is the primary cause of high radon levels, followed by uranium's decay in water. In some instances, building materials give off radon, but this is less common and contributes to lower levels than those of the gas found in soil.

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Full Answer

Radon is an odorless, colorless, tasteless gas that contributes to health problems of those contained in homes and other building structures where it is present at higher than normal levels. It is the second leading cause of lung cancer in the United States. There are tests for radon that can be administered either with do-it-yourself home kits or through a professional tester. Minor home renovations can be made to reduce the levels that seep into the home.

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