Resuspension of radioactive fall-out from the soil surface and particulate contamination of vegetative cover

A method for the determination of resuspension parameters of radioactive fall-out from nuclear explosions, deposited on soil from the stratospheric reservoir, is presented. The seasonal variation ofk -¹³⁷Cs resuspension parameter, the trend ofk with time in 1963–1978, the trend over this period of time of the wind component fraction of the concentration of global¹³⁷Cs in the surface boundary layer over arable and natural soils are given. An estimate of radioactive contamination of vegetation by the effect considered is given as an example of practical use of this work.