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How does radon cause lung cancer?

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When you breathe in radon, tiny radioactive particles get trapped in your lungs and cause damage there. If you're in contact with these levels of radon day after day for years, that damage can lead to lung cancer.

Experts most often measure radon by the amount that's in the air. The higher the level, and the longer you're in contact with it, the greater your risk of lung cancer.

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 risky is radon for causing lung cancer?

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