What You Should Know

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What You Should Know


Our fresh, clean outdoor air and water is one of the reasons we love living in Maine. However, one in three homes in Maine will test positive for higher than normal levels of radon.*

Protect yourself and your family: learn about radon and its link to lung cancer, test your home’s radon levels, and treat the problem if needed.

View Map of Radon Zones in Maine

Any home can have a radon problem.

It doesn’t matter if your home is old or new, or even if your neighbor’s home has tested negative for radon.*


Radon has no color, taste, or odor.

Exposure causes no immediate symptoms. The only way to detect dangerous levels of radon in your home is to test the air.


Radon is responsible for an estimated 21,000 lung cancer deaths each year, including 2,900 people who have never smoked.

If you smoke and live in a home with high levels of radon, you are 10 times more likely to get lung cancer.*


Radon levels can increase over time.

If an air quality test reveals even low levels of radon, you should not assume it will stay that way. It is recommended that you retest radon levels every three to five years.*


Radon can also be found in your well water.

One in five Maine wells have radon concentrations higher than the recommended level. Dangerous particles can be released into the air when you take a shower, do laundry or wash dishes.*


Radon testing saves lives.

Thousands of lung cancer deaths could be prevented each year if home and building owners acted to test and fix.**


*Maine Center for Disease Control & Prevention

**American Lung Association