Radon Basements: Why Denver's Homes Sabotage Your Health.
By Franklin Everett ShawIs your Denver basement harboring a silent threat? Radon, an invisible, odorless gas, is a significant concern in the Mile High City, and ignoring it could have serious consequences for your health. This isn’t just another scare tactic; Denver’s unique geological makeup makes it particularly susceptible to elevated radon levels.
Radon is a naturally occurring radioactive gas produced by the decay 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 the eastern edge of the Rocky Mountains, the soil here often contains higher concentrations of uranium, leading to increased radon levels in homes.
The EPA estimates that radon is responsible for approximately 21,000 lung cancer deaths each year in the United States. It’s the second leading cause of lung cancer, after smoking. The risk is even higher for smokers who are exposed to radon.
So, what can you do to protect yourself and your family? Let’s dive into a comprehensive guide specifically tailored for Denver homeowners, focusing on testing, mitigation, and long-term health strategies.
First, you need to determine if you have a radon problem. DIY testing is a good starting point, but it’s crucial to understand how Denver’s altitude affects the results. At 5,280 feet, the lower air pressure can influence the accuracy of some DIY test kits.
You have two main options for DIY testing: short-term and long-term kits. Short-term kits typically involve placing a charcoal canister or liquid scintillation device in your basement for 2-7 days. Long-term kits, on the other hand, measure radon levels over 90 days or more, providing a more accurate annual average.
For Denver, I strongly recommend using a long-term test kit. The fluctuating weather patterns and temperature changes can significantly impact short-term radon levels, leading to inaccurate readings. Purchase a kit specifically designed for elevated altitudes, if possible. These kits often have adjustments for pressure differences.
You can find DIY radon test kits at most hardware stores, home improvement centers, and online retailers. Look for kits that are certified by the National Radon Proficiency Program (NRPP) or the National Radon Safety Board (NRSB). Follow the instructions carefully, paying close attention to placement guidelines. Keep the kit away from drafts, direct sunlight, and high-humidity areas.
A common mistake is placing the test kit near an exterior wall or window. Radon enters through the foundation, so the center of the basement is usually the best location. Another pitfall is failing to close windows and doors during the testing period, which can dilute the radon concentration and skew the results.
Once you’ve completed the test, send it to the lab for analysis. You’ll receive a report indicating the radon level in picocuries per liter (pCi/L). The EPA recommends taking action if the radon level is 4 pCi/L or higher. Even levels between 2 pCi/L and 4 pCi/L warrant consideration of mitigation.
If your DIY test reveals elevated radon levels, it’s time to call in the professionals. A certified radon mitigation contractor can assess your home and recommend the most effective mitigation system.
Denver has several reputable radon mitigation companies. I recommend getting quotes from at least three different contractors before making a decision. Ask for references and check their credentials with the Colorado Department of Public Health and Environment (CDPHE).
Here are a few Denver-area contractors with solid reputations:
- Radon Solutions of Colorado: Known for their thorough assessments and customized mitigation systems.
- Colorado Radon Defense: Offers a range of mitigation options and focuses on energy efficiency.
- Advantage Radon: Provides comprehensive radon testing and mitigation services throughout the Denver metro area.
The most common radon mitigation technique is sub-slab depressurization (SSD). This involves installing a PVC pipe through the foundation and connecting it to a fan that draws radon gas from beneath the slab and vents it safely outside. The fan creates a negative pressure under the slab, preventing radon from entering the home.
The cost of radon mitigation in Denver typically ranges from $1,200 to $3,000, depending on the size and complexity of your home. Factors that can affect the cost include the type of foundation, the presence of a crawl space, and the accessibility of the soil beneath the slab.
Don’t try to cut corners by hiring an unlicensed or unqualified contractor. A poorly installed mitigation system can be ineffective or even create new problems. Ensure the contractor is licensed, insured, and experienced in radon mitigation in Denver’s specific geological conditions.
After the mitigation system is installed, it’s essential to conduct a post-mitigation radon test to ensure it’s working effectively. The EPA recommends retesting your home every two years to monitor radon levels.
Beyond testing and mitigation, it’s crucial to prioritize long-term health strategies, especially if you’ve been exposed to elevated radon levels. Lung cancer screenings are essential for early detection.
The American Lung Association recommends that individuals at high risk for lung cancer, including those with a history of radon exposure, undergo annual low-dose computed tomography (LDCT) scans. Talk to your doctor about whether you’re a candidate for lung cancer screening.
Several hospitals and clinics in the Denver area offer lung cancer screening programs, including:
- University of Colorado Hospital: Provides comprehensive lung cancer screening and treatment services.
- National Jewish Health: A leading respiratory hospital with expertise in lung cancer diagnosis and management.
- Denver Health: Offers affordable lung cancer screening options for Denver residents.
In addition to screenings, adopt healthy lifestyle habits to protect your lung health. Quit smoking, avoid secondhand smoke, and maintain a healthy diet and exercise routine. These measures can help reduce your risk of lung cancer and other respiratory illnesses.
Denver’s unique environment presents a specific challenge when it comes to radon. But with proactive testing, professional mitigation, and a focus on long-term health, you can protect yourself and your family from the dangers of this silent threat. Don’t wait; take action today to ensure a safe and healthy home in the Mile High City.