According to EPA estimates, radon is the number one cause of lung cancer for non-smokers and the second leading cause of lung cancer overall. Radon is responsible for about 21,000 lung cancer deaths every year. That is far more than all the drunk driving deaths each year and 7 times more deaths than second hand smoke. Visit the EPA for more information.
Radon is a naturally occurring radioactive gas that comes from the decay of uranium in the earth. It is colorless, odorless and tasteless. Radon becomes trapped and concentrated in tighter modern construction. Exposure to radon can cause damage to the lungs which can lead to lung cancer. The upstate of SC, especially Greenville County, have predictably high radon levels on average
Testing for radon gives you peace of mind. Although radon levels can vary in any home, testing provides a snap shot of the levels found in the home at that time.
The time to test for Radon is prior to purchase. If high levels are found there may be opportunity to negotiate for repairs to mitigation. However, finding out that a home has high radon after purchase means that you are on your own for the cost of any necessary abatement. See the EPA's Home Buyer's and Seller's Guide to Radon for more information.