When people think about hazards in their homes, they usually picture things they can see, like mold, water damage, or faulty wiring. But one of the most serious health risks in a home is something you can’t see, smell, or taste. It’s called radon. Radon is a naturally occurring gas that can accumulate inside homes and buildings, and prolonged exposure has been linked to serious long-term health risks. Because it’s invisible and odorless, the only reliable way to know whether it’s present is through radon testing.
Where Does Radon Come From
Radon is a radioactive gas that forms naturally when uranium in soil and rock breaks down. This process occurs underground, which means radon can be found anywhere. The gas rises through the soil and can enter buildings through small openings such as foundation cracks, construction joints, gaps around pipes, or sump pits.
Once inside, radon can become trapped and accumulate over time, especially in lower levels of buildings, such as basements. Because radon is invisible and odorless, most people have no idea if it’s present in their home. According to the U.S. Environmental Protection Agency (EPA), radon is the leading cause of lung cancer among non-smokers and the second leading cause overall in the United States.
Why Radon Exposure is a Health Concern
Radon becomes dangerous when it accumulates in enclosed indoor spaces, and people breathe it over long periods. When inhaled, radioactive particles from radon can become trapped in the lungs. Over many years, this exposure can damage lung tissue and increase the risk of lung cancer.
The risk doesn’t happen overnight. Radon-related illnesses are typically associated with long-term health risks, meaning exposure over many years increases the likelihood of developing health problems. The Centers for Disease Control and Prevention (CDC) also emphasizes that radon exposure is preventable through testing and mitigation.
Radon is More Common Than Many People Realize
One of the biggest misconceptions about radon is that it only occurs in certain types of homes or specific regions. In reality, radon can be found in almost any type of building, including:
- Older homes
- Newly constructed homes
- Homes with basements
- Homes without basements
- Apartments and commercial buildings
Even neighboring homes can have very different radon levels because soil composition varies from property to property. The EPA estimates that about 1 in 15 homes in the United States has elevated radon levels.
When Radon Testing is Essential
While testing can be beneficial in any home, there are certain situations where it becomes especially important. For example, radon testing is often recommended when:
- Purchasing a new home
- Selling a property
- Renovating a basement or lower level
- Living in a home that has never been tested before
Testing during real estate transactions has become increasingly common because buyers want to understand environmental conditions before closing.
How Radon Testing Helps Prevent Long-Term Health Risks
Radon exposure doesn’t cause immediate symptoms. People can unknowingly live with elevated levels for years. This is why radon testing plays such a key role in prevention. Testing allows homeowners to:
- Identify whether radon is present
- Measure how much radon is in the air
- Take action if levels are high
Without testing, radon exposure can go unnoticed for decades. By testing early, homeowners can reduce or eliminate a risk that might otherwise affect their health many years down the road.
In other words, radon testing isn’t just about checking a box during a home inspection; it’s about protecting long-term health.
Maintain a Safe Living Environment
Radon may be invisible, but its potential impact on health is well documented. Because it forms naturally in the soil and can enter homes without warning, the only reliable way to know whether radon is present is through radon testing. Get a radon test with licensed experts of Blessed Assurance Home Inspection and identify the risk. It can help to lower the long-term health risks associated with prolonged radon exposure.

