A minimal amount of radioactive iodine 131 was measured in Tromso, Norway. However, the Norwegian Radiation and Nuclear Safety Authority (DSA) emphasizes that these levels do not pose any harm to humans or the environment. This was reported by The Barents Observer.
The origin of the isotope measured in this area is currently unknown. The releases – continues the DSA – most likely do not come from a nuclear reactor accident, since such events would cause the release of many other isotopes, such as strontium-90 and cesium-137. However this iodine will decay completely within a few.