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22/07/2020

Detection of an increase in airborne radioactivity levels in Northern Europe - Update of July 22, 2020

 

Since the publication of the IRSN information report of June 30, 2020, measurements available abroad have made it possible to model the transport of air masses in Western Europe and to determine a plausible geographic area of the release origin which is located on a territory covering part of the Baltic countries and Western Russia.

Measurements in France from the IRSN’s OPERA monitoring network do not reveal the presence of radionuclides linked to this release.

Regarding the cause of the release, new measurements confirm that the radionuclides identified and their proportions are characteristic of irradiated nuclear fuel.

The simulations make it possible to estimate the exposures that could result from the release. These are low in the immediate vicinity of the point of release and insignificant at longer distance. 

 

Download IRSN information report from July 22, 2020 "Detection of an increase in airborne radioactivity levels in Northern Europe – Update of July 22, 2020" (PDF, 1.26 Mo)

 

Modeling of the dispersion in Europe of air masses slightly contaminated by artificial radionuclides

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