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Resuspension factors of 137Cs in Hannover after the Chernobyl accident

: Holländer, W.


Journal of Aerosol Science 25 (1994), Nr.5, S.789-792
ISSN: 0021-8502
Fraunhofer ITA ( ITEM) ()
cesium; environmental chemistry; environmental protection; nuclear power plant; nuclear reactor; nuclear reactor accident; physics; pollution; radioactive tracer; radioactivity; wide range aerosol classifier

Shortly after the Chernobyl accident, resuspension factors for 137Cs were determined in Hannover, Germany. In the first few weeks after deposition a clear dependence of airborne 137Cs concentration, which ranged between 0.5 and 10 m BQ m-3, on wind speed was observed. Best fit to the data was obtained for a power exponent close to unity. After a few months, even during strong wind periods with appreciable dust resuspension, radioactivity concentrations were below the detection limit.