Roshydromet considers the concentration of radioactive isotope ruthenium-106 to be safe and therefore will not look for a source of release. This is reported by RIA Novosti with reference to the statement of the head of the department Maxim Yakovenko.
According to him, an increase in the concentration of ruthenium-106 was recorded at the end of September in Russia, Poland, Bulgaria and Ukraine. At the same time, in Russia the excess of the permissible level was one and a half to two times lower than in Romania, and thousands of times less than the permissible level. “As for the source (a possible release) – we are not looking for it. What to look for him when there is no danger? “- added Yakovenko.
At Rosatom it was confirmed that there were no incidents and accidents due to which the concentration level of the isotope could have increased.
Previously, Yakovenko suggested that the release could be associated with the fall of the spacecraft, where ruthenium-106 is used as fuel. He noted that the resettlement of local residents in other areas is not required.
The increase in the level of the isotope content was initially complained in Europe. At the end of September, the German agency for radiation protection found concentrations of ruthenium-106 safe in the air of Germany and Austria. The department assumed that the source of the isotope could be in Russia in the Southern Urals. Later, Roshydromet reported that in September and October 2017, high environmental contamination with ruthenium-106 was recorded in the Southern Urals, in Tatarstan, the Volga region and Rostov-on-Don.
In the village of Argayash and Novorny settlement in the Chelyabinsk region, the radiation level exceeded the indications of the previous month by 986 and 440 times, respectively. Near these settlements is the nuclear weapons company Mayak, whose representatives denied the organization’s involvement in the ruthenium release.