It is inert, colorless, odorless, and can be found in trace amounts in the atmosphere.
Radon disperses quickly so exposure outdoors or in small amounts indoors is harmless.
But exposure to high levels within a closed space for a long period of time can cause cancer.
Francesco Scatena / iStock / Getty Images
Fortunately, most indoor radon is managed with proven, cost-effective techniques.
Chemical Composition
Radon is a monoatomic radioactive particle with an oxidation state of zero.
Radon is formed from the radioactive decay of uranium, which is found in most rocks and soil.
Over time uranium breaks down into several components, including radium, which eventually breaks down further into radon.
Radon, like uranium, is unstable and breaks down further into radiation and daughter particles.
During the decay process, alpha, beta, and gamma radiation are released.
The EPA estimates that about 21,000 people die each year as a result of radon-related lung disease.
Radon is radioactive and can decay into cancer-causing radiation particles when inhaled over a long period of time.
Radon gas can break down into tiny radioactive particles called radon progeny.
These particles lodge into the lining of the lung and give off radiation, damaging these cells.
If enough cells are damaged over a long period of time lung cancer may ensue.
If radon levels are high, contact a certified radon service professional to fix your home.
EPA guidance suggests mitigating if levels are at or above 148 Bq/m3 (4 pCi/L).
Reducing Radon Exposure
Radon mitigation systems can reduce radon gas to the equivalent of outdoor air.
While this isnt exactly zero, its pretty close.
Some states have also developed mandatory radon testing provisions in schools and homes in certain contexts.
Most of these are radon disclosure laws requiring realtors to disclose all known radon level testing and results.
U.S. Environmental Protection Agency.What is radon gas?
National Center for Biotechnology Information.
PubChem.Compound summary CID 24857, Radon.
American Cancer Society.Radon and cancer.
Centers for Disease Control and Prevention.Radon and your health.
RadonResources.com.Are there state radon laws that require testing and mitigation?
