А situation in which uranium hexafluoride (UF$_6$) is discharged bу accident into the atmosphere of the working areas at nuclear facilities is examined. А mathematical model describing the formation of aerosol particles of UO$_2$F$_2$ and HF in the atmosphere of the working areas is developed. The model takes into account the drift of aerosol particles under the forces of gravity and viscous drag. The doses of toxic substances, uranium and fluorine, absorbed bу the human body in the course of breathing are estimated.
Department of Mathematics
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