Russia has said that a leak of nuclear material detected in Scandinavia does not come from one of its power plants.
Nuclear safety watchdogs in Finland, Norway and Sweden said last week that they had found higher than normal amounts of radioactive isotopes in the atmosphere.
A Dutch public health agency said, after analyzing the data, it believed the material came “from the direction of western Russia.”
He said the material could indicate “damage to a combustible element.”
But in a statement, Russia’s nuclear power agency said its two power plants in the northwest, the Leningrad nuclear power plant and the Kola nuclear power plant, were operating normally and that no leaks had been reported.
“There have been no complaints about the team’s work,” a spokesman for state-controlled nuclear power operator Rosenergoatom told the Tass news agency.
“The aggregate emissions of all the isotopes specified in the mentioned period did not exceed the reference numbers.”
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Radiation levels around the two power plants “have not changed in June,” the spokesperson added.
Lassina Zerbo, Executive Secretary of the Comprehensive Nuclear Test Ban Treaty Organization (CTBTO) tweeted on Friday that her Stockholm monitoring station had detected three isotopes: Cs-134, Cs-137 and Ru-103, at higher levels. than usual but not harmful to human health.
The particles were detected from June 22 to 23, he said.
The Dutch National Institute for Public Health and the Environment in the Netherlands said on Friday that the composition of nuclear material “may indicate damage to a fuel element in a nuclear power plant.”
The International Atomic Energy Agency, the UN nuclear watchdog, said Saturday it was aware of the reports and was seeking more information from member states.