[Background radiation level in mine shafts and pits in the Georgian SSR].
D000398:Air Pollution, Radioactive / Q000032:analysis*; D003032:Coal Mining; D005846:Georgia (Republic); D008452:Maximum Allowable Concentration; D011834:Radiation Monitoring; D011886:Radon
D011886:Radon
Radiatsionnyĭ fon v rudnikakh i shakhtakh Gruzii.