This median value varies greatly according to the age category. For infants of less than one year, it is 0.55 mSv (highest value) and between 6-10 years it is 0.012 mSv. The substantial uncertainties in these studies with regard to the average effective dose values per type of procedure must nevertheless be taken into account, which justifies the need for progress in estimating doses in the next exposure study of the general population. Particular attention must be exercised to check and reduce the doses associated with diagnostic medical imaging, particularly when alternative techniques can be used for a same given indication. Controlling the doses of ionising radiation delivered to persons during a medical examination remains a priority for ASN. 3.4 Exposure of non-human species (animal and plant species) The international radiation protection system was created to protect humans against the effects of ionising radiation. Environmental radioactivity is thus assessed with respect to its impact on human beings and, in the absence of any evidence to the contrary, it is today considered that the current standards guarantee the protection of other species. Protection of the environment against the radiological risk and more specifically the protection of non-human species, must however be guaranteed independently of the effects on humans. Pointing out that this objective is already incorporated in French legislation, ASN ensures that the impact of ionising radiation on non-human species is effectively taken into account in the impact assessments of nuclear facilities and activities. On the basis of the IRSN expert assessment report, the Advisory Committee for Radiation Protection of Worker and the Public (GPRP, formerly GPRADE) issued an opinion in September 2015. Following the recommendations of this opinion, at the end of 2017 ASN set up a pluralistic and multi-disciplinary working group coordinated by the IRSN to produce a methodological guide for assessing the impact of ionising radiation on the flora and fauna, based on a graded approach. The draft of the Methodological guide for assessing the radiological risk for the wild flora and fauna – Concepts, fundamentals and implementation within the impact study was submitted to ASN at the end of 2020 and presented to the GPRADE in June 2021. The final version of the guide was published in January 2022 on the ASN website taking into account the recommendations of the GPRADE’s opinion on the operational nature of the methodology. ASN Report on the state of nuclear safety and radiation protection in France in 2024 115 01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 AP Nuclear activities: ionising radiation and health and environmental risks
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