Radiation Exposure and Health

Radiation exposure can be conveniently separated in to two principal sources; natural and man-made.  By far the largest contribution to radiation exposure, of approximately 86 per cent, comes from natural sources.  Man-made sources contribute approximately 14 per cent and are dominated by the beneficial use of radiation in medicine.  Doses from other man-made or artificial sources account for less than 1 per cent.

The effects of high and very high doses of radiation, including serious injury, cancer and death, are reasonably well known from scientific studies.  At lower doses the risk of fatal cancer is not precisely known, but it is assumed that there is a direct relationship between dose and risk all the way down to zero.  In this section of the website, you can find out more about the sources of radiation to which you are exposed to in Ireland and the health risks associated with that exposure.

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Your radiation exposure and how much radiation you are exposed to.

Radiation dose calculator  Calculate your radiation dose and compare it to the average person in Ireland.

Health risk and the effects of radiation

Radon & your health  An explanation of what radon is and why it is dangerous.

 An explanation of cosmic radiation and how it affects air passengers and air crew.

FAQ's on some common subjects that we are asked about your health.