The greatest health risk from radiation in Ireland is from radon. In fact, 56% of the total radiation we are exposed in Ireland is from radon. About 300 cases of lung cancer in Ireland every year can be linked to radon.
Radon produces tiny radioactive particles. When they are inhaled, these particles can be deposited in the airways and result in a radiation dose to your lungs. Over a long period of time, this exposure to radon can increase your risk of developing lung cancer.
Radon is a particular hazard for people who smoke. Radon is not irritating to the lungs in the usual sense. It does not cause or increase the risk of asthma, nor is it associated with other common respiratory illnesses.
The risk from radon is 25 times greater for smokers than for lifelong non-smokers exposed to the same levels of radon. This is in addition to the lung cancer risk due to smoking itself. Ex-smokers remain at increased risk from radon for a number of years after they have stopped smoking.
Your risk of developing lung cancer from exposure to radon depends on: