Don’t mind the cloud of radioactive pollution floating over Europe – it’s harmless, the French nuclear safety institute IRSN said Thursday. Officials in Europe said they began detecting unusually high levels of ruthenium 106, a radioactive atom that does not occur naturally, near France in the last week of September. The IRSN immediately “mobilized all its means of radiological monitoring... 

Radiation monitors have detected radioactive particles in the air across Europe, although the source remains a mystery. Germany’s Office for Radiation Protection reported increased radioactivity in parts of Central and Western Europe over the last week. The heightened levels were detected at several trace measuring stations in Europe, and at six locations in Germany. The particles are ruthenium-106,...