How common is radon in the US?

The U.S. Environmental Protection Agency (EPA) estimates that 6%, or approximately 6 million U.S. homes, have concentrations of radon above 4 picocuries per liter (pCi/L) (EPA 2009c). Radon gas can enter a building and then become trapped indoors.

Do certain areas have more radon?

Radon levels can vary greatly across a single neighborhood, but there are certain areas of the country that have a higher predicted average indoor radon level, as shown in the EPA map below. However, it’s important to test for radon even if you live in a moderate or low-risk area.

Where are high levels of radon found?

Radon enters buildings through cracks in the floors or at floor-wall junctions, gaps around pipes or cables, small pores in hollow-block walls, cavity walls, or sumps or drains. Radon levels are usually higher in basements, cellars and living spaces in contact with the ground.

Is my house in a radon gas area?

Anyone can find out if a property is in a radon Affected Area by completing an online search. The search will tell you the chance of that property having a high radon level.

Can you reduce radon by opening windows?

As a temporary solution, however, you can reduce radon levels simply by opening windows. Opening windows improves air circulation and ventilation, helping move radon out of the house and mixing radon-free outside air with indoor air. Make sure all your basement windows are open.

Where is radon most commonly found in the US?

Here are the 10 US States with the highest average Radon levels:

• Alaska (10.7)
• South Dakota (9.6)
• Pennsylvania (8.6)
• Ohio (7.8)
• Washington (7.5)
• Kentucky (7.4)
• Montana (7.4)
• Idaho (7.3)

Is radon only in the basement?

Radon is completely odorless as well as being invisible. Because it is often found unexpectedly in basements, some people mistakenly believe that it only occurs in basements. Not to be forgotten, homes built on a slab are also at risk for high radon levels. …

What are the symptoms of radon?

Possible symptoms include shortness of breath (difficulty breathing), a new or worsening cough, pain or tightness in the chest, hoarseness, or trouble swallowing. If you smoke and you know you’ve been exposed to high levels of radon, it’s very important to quit smoking.