Radon is the leading cause of lung cancer among non-smokers. Do you know what radon is? Where it is? How to test for it?
Tompkins County residents can receive a FREE radon test kit as part of the County's Healthy Neighborhoods Program. Contact Healthy Neighborhoods Program staff for more information. Alternatively, download this form to order a discounted Radon Test Kit from the NY State Department of Health (NYS residents only).
Radon is an invisible odorless gas. It comes from the breakdown of uranium in soil, rock, and water. Radon gas is found all over the world, and in every state in the U.S. Levels can vary widely, even from home to home in the same neighborhood. Radon gas becomes a health hazard when it accumulates indoors and is breathed in. The radioactive energy bursts can irritate the lung tissue and damage DNA. Radon exposure is the second leading cause of lung cancer in the U.S. after smoking. Radon levels can be lowered, and homes can be built to be radon-resistant.
The EPA recommends radon mitigation when levels exceed 4 pCi/L. Radon is present in Tompkins County and there are multiple ways to test your home radon levels to see if you need mitigation. The graph below shows average basement radon levels in each town in Tompkins County. As you can see, most towns have average radon levels that meet EPA's criteria for action. Data is from New York State radon testing, 1987-2023.
Air pressure inside your home is usually lower than pressure in the soil around your home's foundation. When radon gas is present in the soil, your house acts like a vacuum and draws radon in through cracks and other openings.
Radon gets into your home through:
View New York State's list of local/regional radon testing and mitigation contractors, or visit the National Radon Proficiency Program to find a Certified Radon Testing or Mitigation Contractor.
Last updated June 5, 2024