|Document ID (ISN)||26178|
|ISSN - Serial title
||Mitteilungen der Sektion Physik der SUVA
|Convention or series no.
||Radon and radon daughter concentration in tunnels
||Radon und Radonfolgeprodukte in Tunnels und Stollen [in German]|
||Schweizerische Unfallversicherungsanstalt, Luzern, Switzerland, Apr. 1976, No.4, p.95-138. Illus. 6 ref.
||Workers in tunnels may be exposed to radiation due to radon or its daughters. Studies in various tunnels and galleries in Switzerland showed that whenever ventilation was provided the radon daughter concentration was below the maximum permissible level of 0.3WL. Higher concentrations were found only in 2 cases: a uranium mine which had for a long time been without ventilation, and a water-feed tunnel in which the ventilation system had been removed after tunnelling had been completed.
||ionizing radiation; radon; radiation monitoring; tunnelling; radon daughters
||hydroelectric power stations; uranium mining; exposure evaluation
|Broad subject area(s)