Radioactive dating game answers
The isotope has a half-life of only eight days, which suggests the particles must have entered the atmosphere after a recent event.
The pattern of movement of the particles suggests they may have originated in Eastern Europe, according to the Norwegian Radiation Protection Authority (NRPA).
This movement led the Norwegian Radiation Protection Authority (NRPA) to suggest the particles may have originated in Eastern Europe.
Within two weeks, it was traced in Poland, Czech Republic, Germany, France and Spain.
News of the deployment comes amid claims Russia may be testing nuclear weapons, either to the east or in the arctic, after a spike in radioactivity was reported.
Air quality stations across the continent detected traces of radioactive Iodine-131 in January and February, which seem to have come from eastern Europe.
'Measurements from several places in Europe might indicate it comes from Eastern Europe.'Increased levels of radioactive iodine in air were made in northern-Norway, northern-Finland and Poland in week two, and in other European countries the following two weeks.'She said it is difficult to pinpoint where the radioactive material came from.
An explosion at a plant run by French firm EDF – just 75 miles across the Channel – added to concerns over nuclear safety earlier this month.
IODINE PLANT LEAKThe compounds may also have also come from an Iodine plant.