The Hill:
Russia’s state weather agency has reportedly said that it found radioactive isotopes in test samples after an accident at a military test site that killed five people earlier this month.
A cloud of inert radioactive gases had formed due to a decay in the isotopes, the weather agency said in a statement Monday, according to Reuters. The agency also said that the decay resulted in a brief radiation increase in the nearby city of Severodvinsk.
It added that the isotopes were Strontium-91, Barium-139, Barium-140 and Lanthanum-140, which have half-lives of 9.3 hours, 83 minutes, 12.8 days and 40 hours, respectively.
