Radon Myths & Facts

Radon Facts

RADON is a naturally occurring, invisible, odorless gas that comes from deposits of uranium in soil, rock, and water. It is harmlessly dispersed in outdoor air, but can threaten human health when it accumulates in buildings. Radon is a radioactive decay product of radium, which in turn is a decay product of uranium. Uranium and radium are naturally occurring common elements in soil.

What are the Health Effects of Radon?
Exposure to radon is the second leading cause of lung cancer in the U.S. The U.S. Environmental Protection Agency (EPA) estimates that radon causes 15,000 to 22,000 lung cancer deaths in the country each year. Radon can be inhaled into the lungs, where it undergoes radioactive decay. As it decays, radon releases tiny bursts of energy called alpha particles, which can harm sensitive lung tissue by damaging the DNA. This damaged DNA can lead to lung cancer.

Where is Radon Found?
The primary source of high levels of radon in homes is the surrounding soil. Hot spots include basements, first-floor rooms, and garages. Radon has been found in elevated levels in homes in every state, and EPA estimates that as many as one in 15 homes across the U.S. have elevated radon levels. No area of the country is free from risk.

Dispelling Some Common Radon Myths

"I don’t have a basement, so I probably don’t have a radon problem."
Radon can seep in from soil anywhere around or under a home, regardless of whether your home has a basement, a crawl space, or is built slab-on-grade. The EPA and the Surgeon General recommend radon testing for all types of homes. In multi-level homes testing should be done on a level below the third floor. "There doesn’t seem to be much proof that radon is a serious health problem."
Never before have we had such overwhelming scientific consensus that exposure to elevated levels of radon causes lung cancer in humans. In February of 1998, the National Academy of Sciences (NAS) presented the findings of their Biological Effects of Ionizing Radiation (BEIR) VI Report: “ The Health Effects of Exposure to Indoor Radon.” This report by the NAS is the most definitive accumulation of scientific data on indoor radon. The report confirms that radon is the second leading cause of lung cancer in the U.S. and that it is a serious public health problem. The study fully supports EPA estimates stating that radon causes between 15,000 and 22,000 lung cancer deaths per year.