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Radon is a colorless, odorless, invisible gas that can only be detected through radon testing. It is a radioactive gas that is produced by the natural decay of uranium that is found in nearly all soils. Radon is proven to cause cancer.
EPA believes that any radon exposure carries some risk - No level of radon is safe.
How radon enters a home:
Exposure to radon:
Congress has set a long-term goal that indoor radon levels be no more than outdoor levels. You can reduce your risk of lung cancer by lowering your radon level.
Radon level of 4 pCi/L (PicoCuries per liter) or higher requires remediation:
The EPA recommends all homeowners test their residences for radon gas concentrations. There are both short- and long-term testing kits available.