Radon gas is a decay product of radioactive uranium that cannot be seen, smelled, or tasted. In open air it is harmlessly dispersed, however well water passing through soil with high levels of the gas may be a significant source of radon in a home. High levels of radon occur particularly in Fairfield County. Exposure to radon increases your risk of developing lung cancer. According to the U.S. E.P.A., radon causes more cancer deaths than any other single air pollutant except tobacco smoke.

The simplest way to find out if your home has high levels of radon is through a test. Because radon is known to occur in Darien, the health department encourages residents to self-test their homes. Drop by the health department and pick a test kit up. For more information, call 203-656-7320.

Kits are also available commercially or may be purchased by calling the Radon Hotline — 1-800-SOS-RADON — operated by the National Safety Council.