Radiation may be hiding in ordinary apartments.
The main source of danger is radon in natural gas, which penetrates into buildings from the ground through cracks in the foundations.
"Also, a natural granite floor or facing tiles may contain natural radionuclides," said housing and community services specialist Dmitry Bonder.
Ventilation, sealing cracks and checking the quality of building materials will help reduce risks. The radiation background of objects can be checked with a home dosimeter.
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