This was reported by RIA Novosti with reference to the materials of Roshydromet.

It is noted that after a short-term increase in the DER, six posts of the radiation monitoring system in the Arkhangelsk region recorded stabilization of the radiation background.

“It is assumed that the increase in the DER on posts on August 8, 2019 is associated with the passage of a cloud of radioactive inert gases,” the weather service said.

According to Roshydromet, the meteorological situation in the region contributed to the rapid dispersal of the cloud.

On August 8, five Rosatom employees died as a result of an emergency at a military training ground in the Arkhangelsk region. According to Rosatom, tests of a rocket that exploded at a training ground took place in the White Sea.

The Northern Administration for Hydrometeorology and Environmental Monitoring reported that on August 8 during the emergency at the landfill, the radiation level in Severodvinsk was 4-16 times exceeded.