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How does radon get into homes?

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It can seep up from the ground or get in through cracks in your foundation, gaps around pipes or wires, or other openings. Sometimes it can get into well water. Small amounts of it can also come from building materials, like concrete, brick, and granite, but experts say that the levels are usually low enough they don't cause problems on their own.

SOURCES:

Environmental Protection Agency: "A Citizen's Guide to Radon: The Guide to Protecting Yourself and Your Family from Radon," "EPA Map of Radon Zones."

National Cancer Institute: "Radon and Cancer."

American Cancer Society: "Radon and Cancer."

Reviewed by Sabrina Felson on April 21, 2019

SOURCES:

Environmental Protection Agency: "A Citizen's Guide to Radon: The Guide to Protecting Yourself and Your Family from Radon," "EPA Map of Radon Zones."

National Cancer Institute: "Radon and Cancer."

American Cancer Society: "Radon and Cancer."

Reviewed by Sabrina Felson on April 21, 2019

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How does radon cause lung cancer?

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