Radon – The 6 Most Frequently Asked Questions

Date Published: August 11, 2015

Having performed over 5000+ radon tests on homes over the years, we have heard every possible radon frequently asked questions from home buyers and home owners.  Testing for radon in Colorado is extremely important, whether buying a home or as a home owner.  With radon gas being the #2 cause of lung cancer, and the EPA recently announcing all counties in Colorado are in the high-risk category for radon, testing is the only way to understand if elevated levels of radon are present in the home.

Home buyers should always have a radon test performed when considering the purchase of a home.
– Finding elevated concentrations of radon doesn’t mean you should walk away from your dream home!
– Radon reduction technology has improved so much over the last few years that reducing radon is easy and affordable.

Let’s tackle the top 6 radon frequently asked questions we have heard from buyers and homeowners about radon in homes:

Question #1 – What is Radon: radon sources

– Radon is an invisible, radioactive gas created from natural deposits of uranium and radium in the soil. Radon gas can be drawn into a building and accumulate to concentrations that can increase the potential for contracting lung cancer.
– Although there are rare cases where the source of the radon has come from building materials created from spent uranium processing plants, the major source of radon in Colorado homes comes from the natural deposits of uranium commonly found in Colorado.

radon lungsQuestion #2 – Why should I be concerned about Radon:

– Radon is regarded as a Group A carcinogen; it is known to cause cancer in humans with prolonged exposure. Many buyers are concerned about their health risk, as well as property resale value and want to test for and correct radon concerns.
– The United States Environmental Protection Agency and Surgeon General recommend that people not have long-term exposures in excess of 4.0 pico Curies per liter (pCi/L).
– The only means to determine the exposure levels in a home is to measure for Radon.


Question #3 – How common is Radon in Colorado:radon colorado map

–  Surveys conducted by the Colorado Department of Public Health and Environment indicate that four out of 10 Colorado homes have the potential for having radon concentrations in excess of the EPA guideline of 4.0 pC/L.
– The EPA recently designated that all counties in Colorado are at the highest risk level for radon gas.
– Radon can be found in any type of home, not just homes with basements.  Homes over a crawlspace or built on a slab can also have radon present.