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What is Radon?

Radon gas is colorless, odorless and tasteless radioactive gas. It is formed by the breakdown of uranium, a natural radioactive material found in soil, rock and groundwater.

What is the Threat of Radon?

Radon is the second leading cause of lung cancer after smoking. In the United States, the EPA estimates that about 21,000 lung cancer deaths each year are radon related and in Canada that number stands at approximately 3,000.

How Does Radon Get Into the Home?

When radon is released from the ground into the outdoor air, it gets diluted to low concentrations and is not a concern. Within homes, it typically moves up through the flooring system and other openings between the ground and living spaces. Your home traps radon inside, where it can build up. Any home may have a radon problem – this means new and old homes, well-sealed and drafty homes, and homes with or without basements. Even if you live in an area with fairly low environmental radon, you could still have significant levels in your home.

What are the Radon Threshold Limits?

World Health Organization

Becquerel per cubic meter
100 Bq/m³
Picocuries per litre
2.7 pCi/L

Environmental Protection Agency (USA)

Becquerel per cubic meter
150 Bq/m³
Picocuries per litre
4.0 pCi/L

Health Canada

Becquerel per cubic meter
200 Bq/m³
Picocuries per litre
5.4 pCi/L
If you would like more information on Radon visit:
USA: www.epa.gov/radon
Canada: www.healthycanadians.gc.ca/radon
World Health Organization (WHO): www.who.int/ionizing_radiation/env/radon/en/

Click Here for our “Radon In The Home: What You Need To Know” quick reference sheet.

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