Radon Basements: A Lung Health Risk in Denver's Housing Boom
By Franklin Everett ShawDenver’s housing market is booming, and everyone’s scrambling for a piece of the Mile High City. But amidst the bidding wars and open houses, there’s a silent threat lurking in many Denver basements: radon. This invisible, odorless gas is a leading cause of lung cancer, and Colorado, particularly the Front Range, has some of the highest radon levels in the country. Ignoring it is like playing Russian roulette with your health, especially when simple, affordable testing and mitigation options exist.
Radon is a naturally occurring radioactive gas that comes from the breakdown of uranium in soil, rock, and water. It seeps into homes through cracks in foundations, gaps around pipes, and other openings. Because Denver sits on a geological formation rich in uranium, radon is a significant concern for homeowners.
Testing for radon is surprisingly easy and inexpensive. You can purchase a DIY radon test kit at most hardware stores in Denver, like Home Depot or Lowe’s, or online. These kits typically contain a passive collection device that you place in the lowest lived-in level of your home, usually the basement, for a specified period, typically 2-7 days.
Follow the instructions precisely. The accuracy of the test depends on it. Close windows and exterior doors for 12 hours before starting the test and keep them closed during the testing period. Don’t place the test kit near drafts, heat sources, or in direct sunlight.
After the testing period, you seal the collection device and mail it to a lab for analysis. The lab will then send you a report with your radon level, measured in picocuries per liter (pCi/L).
The Environmental Protection Agency (EPA) recommends taking action to reduce radon levels if they are at or above 4 pCi/L. In Colorado, the Department of Public Health and Environment (CDPHE) also follows this guideline. Even levels between 2 pCi/L and 4 pCi/L warrant consideration of mitigation.
Interpreting your results is crucial. A reading of 4.1 pCi/L is not just slightly above the action level; it’s a serious health risk. Don’t downplay the danger.
If your radon level is above 4 pCi/L, mitigation is essential. Several options are available, ranging from DIY solutions to professional installation.
One common and effective mitigation technique is soil suction, also known as sub-slab depressurization. This involves installing a pipe through the foundation floor and connecting it to a fan that draws radon gas from beneath the slab and vents it safely outside.
While professional installation is recommended for soil suction, some DIY options can help reduce radon levels, especially if they are only slightly elevated. Sealing cracks and openings in the foundation with caulk or epoxy can help prevent radon from entering your home. Increasing ventilation by opening windows or using fans can also temporarily lower radon levels.
However, DIY solutions are often insufficient for homes with high radon levels. Professional radon mitigation companies in Denver have the expertise and equipment to install effective and long-lasting mitigation systems.
Choosing a qualified radon mitigation contractor is crucial. Look for companies certified by the American Association of Radon Scientists and Technologists (AARST) or the National Radon Proficiency Program (NRPP). Check their credentials, read online reviews, and get multiple quotes before making a decision.
A common mistake homeowners make is choosing the cheapest contractor without considering their qualifications or experience. This can lead to poorly installed systems that are ineffective or even create new problems.
The cost of radon mitigation in Denver typically ranges from $800 to $2500, depending on the size and construction of your home and the type of mitigation system installed. While this may seem like a significant investment, it’s a small price to pay for protecting your family’s health.
Denver has specific resources and regulations regarding radon testing and mitigation. The CDPHE provides information on radon testing, mitigation, and certified contractors. The Denver Department of Public Health & Environment also offers resources and educational materials.
Furthermore, some Denver neighborhoods, particularly those built on certain geological formations, are known to have higher radon levels than others. Researching the radon risk in your specific neighborhood can help you assess your risk and take appropriate action. For example, areas near Golden, Morrison, and even parts of Lakewood, due to their proximity to the foothills, often exhibit higher radon concentrations.
Don’t rely solely on your neighbor’s experience. Radon levels can vary significantly from house to house, even within the same neighborhood. Testing is the only way to know for sure if your home has a radon problem.
One often-overlooked aspect is the importance of retesting your home after mitigation. This ensures that the mitigation system is working effectively and that radon levels have been reduced to acceptable levels. The EPA recommends retesting every two years.
Ignoring radon in your Denver home is a gamble you can’t afford to take. Testing is simple, mitigation is effective, and the peace of mind knowing you’re protecting your family’s health is priceless. Don’t let the excitement of Denver’s housing boom overshadow this critical safety concern. Take action today to ensure your home is a safe and healthy environment for you and your loved ones.