Any time of the year is an acceptable time to test for radon. However, during the winter months, warm air inside a house draws cooler air into the home from below, often bringing radon gas with it. While radon may be present year round, it is more likely to be elevated from October to March when the weather is cooler.

When should you test for radon in your home?

EPA RECOMMENDS: If you are buying or selling a home, have it tested for radon. For a new home, ask if radon-resistant construction features were used and if the home has been tested. Fix the home if the radon level is 4 picocuries per liter (pCi/L) or higher.

What are the symptoms of radon in your home?

• Persistent cough.
• Hoarseness.
• Wheezing.
• Shortness of breath.
• Coughing up blood.
• Chest pain.
• Frequent infections like bronchitis and pneumonia.
• Loss of appetite.

What time of year are radon levels highest?

Radon levels can vary by season, with the highest levels typically occurring during the months that we heat our homes. That means that even if your home's radon was below the EPA's suggested action level of 4.0 picocuries per liter of air during the warmer months, it could be above that level during the winter.

Does opening windows decrease radon?

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. Homes tend to have lower air pressure than their surroundings, which draws radon into the basement.

Home Radon Testing - Chuck Lynch, MD, PhD

Does running furnace affect radon test?

Winter is a good time to test for radon because you are, in-most cases, measuring the worst case scenario for your home. With the hatches battened down and the furnace running, you are creating a scenario that can cause radon levels to be higher.

Is it OK to live in a house with radon?

The EPA states, “Radon is a health hazard with a simple solution.” Once radon reduction measures are in place, home buyers need not worry about the quality of the air in the home. ... Since removing radon is relatively simple, your family will be safe in a home with a radon reduction system in place.

Is radon only in basements?

Basements aren't the only place you can find radon. This is a common assumption since radon is most commonly found in basements. Unfortunately, it's also very wrong. Radon gas can be found anywhere in any home, not just in the basement.

Do all basements have radon gas?

Most commonly homes with basements are suspect for having higher radon levels. The fact that porous foundation walls allow radon gas to enter a home is no secret and with most basements containing a sump well, there are many access points from which radon can enter a home.

Do I really need a radon test?

Radon levels in most homes should be reduced to as low as possible. The only way to know how much radon is in your home is to test it. The Canadian Cancer Society recommends that Canadians test their homes for radon and take action to reduce high levels. ... Find out more about how to test for radon in your home.

Can I test for radon myself?

You can do it yourself or hire someone to do it for you. from a hardware store. Or you can order one by calling 1-800-SOS-RADON (1-800-767-7236) or going to the National Radon Program Services website (). Set up the testing device to check the air for radon.

Does every house have radon?

The simple answer is “yes” – at least trace levels of radon will exist in every home. ... That will mean an old home, new home, drafty home, well insulated home and homes with and without basements. If any part of your foundation is in direct contact with the soil, it has the potential of having elevated levels.

Can radon enter concrete?

Radon, soil gasses, and water vapor will easily pass through any openings, cracks, gaps, drains, or thin concrete (rat slabs) in the basement.

Does finishing a basement reduce radon?

Again, the only way to ensure you are removing radon from your home is with a mitigation system. Sealing the basement floor can help, but just sealing the cracks is unlikely to reduce your radon levels in the long term. Sealing all cracks and applying non-porous, thick epoxy coatings would be a better step.

Do walk out basements have less radon?

While we've found that radon levels in homes with walkout basements tend to generally be lower, this is certainly no guarantee that the radon levels will be low. The highest radon level we've found at a home with a walkout basement was nearly four times higher than the EPA action level.

Where should you place a radon detector?

Place a radon detector in the breathing zone, 2-6 feet above the floor, and away from drafts, exterior walls, sumps, drains, windows or doors. Radon may enter a building through cracks in the foundation or through sumps or drains and will usually be higher near these entry points.

Can radon tests tell if windows are open?

It is important to note that when testing a home for radon, the home must stay closed up. If any doors or windows to the outside are open, the test will be invalid.

How do you eliminate radon?

There's no single method that fits all radon removal system needs. Common techniques include: Sub-slab depressurization, where suction pipes are inserted through the floor or concrete slab into the concrete slab below the home. A radon vent fan then draws out the radon gas and releases it into the air outside.

Are home radon test kits accurate?

Findings show radon tests of less than 90 days are imprecise up to 99 percent of the time. ... A new study finds the only reliable way to measure exposure to radon gas is with a long-term testing kit, 90 or more days. Researchers placed two test kits, a short term (five-day) and long term (90-day) in the same homes.

Is radon a deal breaker?

You can't see it, smell it, or taste it, but radon gas is a leading cause of lung cancer, according to the National Cancer Institute. However, the presence of radon in your home doesn't have to be a deal breaker.

How much does it cost to fix a radon problem?

The cost of a mitigation system may vary according to the home's design, size, foundation, construction materials and the local climate. Radon reduction systems average costs nationally are $1,200 with a range from $800 to $1500 common depending on house and market conditions.

What should you not do during a radon test?

Three feet from doors and windows, away from heat source or humidity. Windows remain closed before and during the test. Maintain regular entry and exit through exterior doors. Maintain normal HVAC operation but no house or window fans.

What can skew a radon test?

#2 Weather Conditions. Rain, thunderstorms and high wind can also have an affect on radon testing results. Radon readings have been known to go down when the outdoor wind speeds increase during periods of high humidity. When the seasons change such as fall to winter, radon testing can be affected.

Is radon gas worse in summer or winter?

To answer that question, yes, radon levels in a home tend to be higher during the winter. And those higher levels of radon gas can lead to an increased chance of lung cancer. While indoor radon gas levels are generally higher during winter, sometimes the summer can have higher indoor radon levels.

Is radon highest in basement?

Also, once the windows, doors, or vents are closed, the radon concentration returns to the previous level within hours according to EPA studies. FACT: Its concentration is usually the highest in basements, simply because it emanates out of the soil through the basement.