Chernobyl 31 years later
Ruthenium-106 in the air in Switzerland and other European countries
Air surveillance
For the monitoring of radioactivity in the atmosphere, the URA section operates, in addition to the UraNet network, other sampling systems allowing to reach a very low detection limit (high sensitivity measurements).
High Volume Sampler
Since 1993, the URA section has maintained a network of high-flow aerosol collectors. Currently, six stations are in operation: