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Radon is a health risk that could be in your home

HAMILTON, ON - Homeowners in the City of Hamilton may be eligible to receive a free test to measure the radon level in their homes. Starting September 30, 2019, eligible homeowners who are interested in participating in a radon testing study can apply for a free test through Hamilton Public Health at This study will help the City understand the number of homes with high levels of radon in Hamilton.

“Protect yourself and your family. Discover how you can be part of a research study to test your home.” -Matthew Lawson, Manager, Health Hazards and Vector-borne Diseases, Public Health Services

Radon is a naturally occurring, radioactive gas that comes from the breakdown of uranium found in rocks and soils. You can’t see, taste or smell radon. It can enter buildings through cracks in foundation floors and walls, gaps in pipes, open floor drains, or any other area of exposed soil. In confined spaces like a home, radon can build up to high levels becoming a health risk. The likelihood of high radon levels cannot be predicted by the age or location of a home; all homes are at risk. Breathing in high levels of radon for many years can lead to lung cancer.

Homeowners interested in receiving a free test and being part of the radon testing study will be required to complete a survey application. Survey applications are available online at The deadline to register for the radon testing study is November 7, 2019. There are limited tests available.

Quick facts

  • In Canada, radon is the second leading cause of lung cancer after tobacco smoke. 
  • This research project has been reviewed by the Hamilton Integrated Research Ethics Board under project #5412.

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