Norwegian authorities have reported trace amounts of radioactive iodine 131 in the atmosphere, which emerged last week in measurements taken in the country’s far northeast near the city of Tromsø. Officials with the Norwegian Radiation and Nuclear Safety Authority were at pains to emphasize that levels of the radioactive isotope were extremely low and posed no threat to human health. But they added that the source of the iodine emissions remained unknown – though, as noted by the Barents Observer, the half-life of iodine 131 is only seven days, implying that the source of the higher measurements can’t be too far from Tromsø.
Bellona 13th Feb 2019 read more »
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