What is Radon? Do I need to test for it?

Reblogger Dan and Amy Schuman
Real Estate Agent with Howard Hanna Real Estate Services

Here in Cleveland, we have actually seen quite a few radon issues in homes and highly recommend testing. If nothing else, consumers should educate themselves on the subject so they can then make an intelligent decision. This is a timely post from Connie Harvey, a top producing real estate agent in the Nashville, TN area.

Original content by Connie Harvey

What is Radon? Do I need to test for it?

January is National Radon Action Month. Radon in Tennessee


Radon is a colorless, extremely toxic radioactive gas. It is found in almost all solid rock, soil and water, though at varying levels. It's formed by the ongoing decay of Uranium.

It's naturally occurring and can enter and build up in your home without you being aware of it. The radon that escapes into the atmosphere is not harmful but too much in your home can cause major health problems. The radon is measured by picocuries per liter (pCi/L). The average home has about 1.3 pCi/L and the average outdoor air has .4 pCi/L. The EPA recommends fixing the air at levels between 2 and 4 pCi/L where WHO, the World's Health Organization recommends that levels be below 2.7 pCi/L.

How do you reduce the levels of Radon in your Home? Mitigation methods can vary from improving ventilation in your crawl space to mechanically pumping the air out of a basement.

Radon in Tennessee can be seen on this map of Tennessee that shows the counties and their tendency to have certain levels of Radon:  Radon in Tennessee











What do the Colors mean?

The Red is Zone 1 - These Counties have the highest potential with numbers at 4 pCi/L or greater.

The Orange is Zone 2 - These Counties have moderate potential with numbers between 2 and 4 pCi/L.

The Yellow, Zone 3 - would be those with the least potential. Typically at 2 pCi/L or less.

The first step is to have a radon test. Most Home Inspectors perform these tests. Ask your local Realtor for some names of Home Inspectors. Radon in Tennessee information is available at:


To see your state showing the radon in the different counties visit the Map of Radon Zones.


Connie Harveyis a local agent with Prudential Woodmont Realty, serving home buyers and sellers in Nashville, TN, Brentwood TN, and Franklin TN. Let her help you realize your Real Estate goals. She can be reached at 888-798-7800 x 1300.

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Steve Loynd
Alpine Lakes Real Estate Inc., - Lincoln, NH
800-926-5653, White Mountains NH

Hi Dan & Amy...I have written a few blogs on this subject, and the presence of Radon gas has caused more than a few real estate transactions to crash in my area of the country. It is a problem in more places than people think. 


Jan 23, 2011 06:17 AM #1
Gary Pike
Better Homes and Gardens Real Estate Metro Brokers - Powder Springs, GA

Great information and thanks for the lead to the maps.

Jan 23, 2011 06:28 AM #2
Dan and Amy Schuman
Howard Hanna Real Estate Services - Solon, OH
Luxury Home Specialists

Steve - Thanks for posting the map. People here in Ohio should take note.

Gary - Thanks for commenting. I think it's a subject that needs to be brought up more often to consumers.

Jan 24, 2011 01:04 AM #3
Daniel J. Brudnok, REALTOR
Berkshire Hathaway Home Services Fox & Roach, REALTORS - Exton - PA License #RS-225179-L / Delaware License #RS-0025038 - Downingtown, PA

Dan and Amy,

Very informative....I want to see if I can get one of these maps for my area of PA.....

Jan 26, 2011 02:58 AM #4
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