The safety and radiation protection authorities of the Scandinavian countries have reported an increase in atmospheric radioactivity detected by their monitoring stations during June. The levels recorded in these countries are very low and do not pose any risk to the public or to the environment.
To date, available measurements from the IRSN’s OPERA monitoring network show no abnormal increase in the level of atmospheric radioactivity in France.
The origin of the release is not identified at this stage. Based on the available measurements, IRSN is conducting investigations, including simulations, to better understand the source location and possible causes of this increase.
Download IRSN information report of June 30, 2020 "Detection of an increase in airborne radioactivity levels in Northern Europe" (PDF, 1,13 Mo)