Radon gas decays into radioactive particles that can get trapped in your lungs when you breathe. As they break down further, these particles release small bursts of energy. This can damage lung tissue and lead to lung cancer over the course of your lifetime. Not everyone exposed to elevated levels of radon will develop lung cancer. And the amount of time between exposure and the onset of the disease may be many years.
Like other environmental pollutants, there is
some uncertainty about the magnitude of radon health risks.
However, we know more about radon risks than risks from most
other cancer-causing substances. This is because estimates
of radon risks are based on studies of cancer in humans (underground
miners and atomic energy plant workers.)
Smoking combined with radon is an especially serious health risk. Stop smoking and lower your radon level to reduce your lung cancer risk.
Children
have been reported to have greater risk than adults of certain
types of cancer from radiation, but there are currently no
conclusive data on whether children are at greater risk than
adults from radon.
Your chances of getting lung cancer from radon depend mostly on: