Atmospheric dilution factors and calculation of doses in the environment of SCK-CEN Mol for short and long duration stac discharges: Volume I & II

The practical knowledge acquired at the SCK/CEN Mol in the field of atmospheric diffusion by the study of the turbulent diffusion of effluents from a high continuous source in relation with the atmospheric stability is applied to the discharges of the Nuclear establishment of Mol.
Seven categories of atmospheric stability are adopted and a separate approach is proposed for the cases of fumigation. The loss of material in the plumes due to settling, dry deposition and wash-out by rain is considered and appropriate correction factors are adopted. A mathematical model is developed to treat the problem of contamination of the atmosphere and of the surface in the environment, in case of release.