On 26 April 1986, the explosion and fire at the Chernobyl nuclear reactor in present-day Ukraine resulted in the release of a large amount of radioactive material into the atmosphere.
This publication is only available in French and German.
The IRSN has published a report detailing the various investigations it has conducted in France and Europe as a result of the measurement of ruthenium 106 in October 2017.
This publication is only available in French and German.
The French and Finnish radiation protection authorities reported the appearance of minute traces of radioactive iodine-131 (I-131) in air samples in January 2017.
This publication is available only in French and German.
