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The E.P.A. recommends every home in the US should be tested for radon. Radon is a naturally occurring odorless radioactive gas that can be present in any home. It is the 2nd leading cause of lung cancer after cigarette smoking.
Radon gas is produced by uranium deposits in water, soil, and rock. It enters a home through cracks in the foundation, unfinished basements, volitization during showers, and building materials. Radon gas is measured in Picocuries (pCi/L). If Radon is measured in a home at levels above 4 pCi/L, mitigation is necessary. Both the Surgeon General and the E.P.A. recommend testing and reducing elevated levels of radon.
To protect yourself from exposure to this pollutant, take the following measures to fix the problem:
- Seal cracks in basements and crawl spaces to limit radon's ability to infiltrate the home.
- Install a continuous fan, often called a radon fan, that vents above the roof line.
- Install ERV/HRV equipment to reduce radon levels.
- For best results use a combination of approaches or use other methods as outlined by the EPA.
- Arrange for a HomeAdvice test to determine if radon is present in your home. Find an IAQ expert in your area.