Thank you for your interest in our radon testing program. We have temporarily suspended accepting requests for home test kits. Studies have shown that radon testing is most accurate during the winter months of the year when people keep their homes closed up and spend more time indoors. In order to serve as many of our citizens as possible we have changed our policy to only issue radon test kits from October 1 through March 31 of each year. We apologize for any inconvenience this may cause; we will resume accepting requests for test kits starting in October.

Due to high demand, test kits are currently on backorder. These orders will be filled as soon as they become available. We are sorry for the delay.

Radon (Rn) is a gaseous radioactive element that occurs from the natural breakdown of uranium in the soil and rocks. It is colorless, odorless, and tasteless. Radon becomes a risk indoors because as it continues to break down, it emits atomic particles that upon entering the lungs can alter the DNA and increase lung cancer risk. In fact, radon is the second leading cause of lung cancer in the nation and is classified as a "Class A" carcinogen according to EPA. Radon is not known to cause asthma or any other type of respiratory distress. Radon can be tested and measured (in picocuries per liter (pCi/L) of air) and there are estimated risks to health from the exposure depending on the concentration. DHSS in conjunction with EPA recommends that if the concentration of radon is 4 pCi/L or greater, then remediation should be done to lower risks. Smoking in conjunction with radon exposure greatly increases the risk of cancer. See the risk chart. For more information about radon see "A Citizen's Guide to Radon."

2018 Missouri Radon Poster Contest Winners

1st place winner poster

1st place:
Cora O., 6th grade
Cole Camp Middle School

2nd place winner poster

2nd place:
Brett B., 7th grade
Phelps Center for Gifted Education

3rd place winner poster

3rd place:
DeLaney B., 7th grade
Phelps Center for Gifted Education


 

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Radon Science Fair Project Ideas