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Radon Indoor Air Program

Florida Department of Health in Lake County Environmental Health

Radon, a Class A carcinogen, is the second cause of lung cancer. Radon is responsible for more than 21,000 lung cancer deaths a year (one every 25 minutes). In Florida, one in five homes tested has elevated radon levels above the action level of 4 pCi/L. Elevated radon levels have been found in all types of buildings, including manufactured homes, schools, and high-rise condominiums.

Radon comes from the radioactive breakdown of naturally occurring radium found in most soils. As a gas in the soil, it enters buildings through small openings in the foundation. Since the building can hold the radon similarly to smoke trapped under a glass, indoor radon concentrations can increase to many times that of outdoor levels. The only way to know the radon levels in your home is to test.

For more information, contact us at 1-800-543-8279 or RadonReports@FLHealth.gov.

Radon Facts

  • Radon is the leading cause of lung cancer among non-smokers.
  • Did you know 1 in 5 homes in Florida has an elevated radon level?
  • Test your home free of charge
  • Radon is a naturally occurring, odorless, colorless, tasteless, and radioactive gas produced from the radioactive decay of radium, found in most soils and earthen construction materials.
  • Radon is the single largest source of radiation exposure in the U.S.
  • The U.S. Environmental Protection Agency estimates that radon is responsible for more than 21,000 lung cancer deaths per year in the U.S. (about one person every 25 minutes).
  • U.S. Surgeon General recommends all houses be tested for radon.

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