Summary: This is a new assessment, completed by EPA and the Health information and Quality Authority, of the average radiation dose received by the Irish population.
Irish people, on average, receive a higher radiation dose than the global average mainly due to relatively high radon exposure in indoor air in Ireland.
The assessment found that over 99% of the dose comes from natural radiation sources and medical exposures, such as X-rays and CT scans.
Radon, a naturally occurring radioactive gas that can cause lung cancer contributes almost 60% of the annual dose. Medical exposures account for just over 10%.
Radioactivity from other artificial sources such as discharges from nuclear facilities abroad, the fallout from historic nuclear weapons testing and past nuclear accidents make up less than 1% of the overall dose.
https://www.epa.ie/media/epa-2020/publications/compliance-amp-enforcement/radiation/Ionising-Radiation-National-Dose-Report-Cover-thumbnail.png