Physicochemical properties of aerosols containing polonium-[210] are r
eviewed. High radiotoxicity and other specific features of polonium ae
rosols that are associated with the possibility of spontaneous aerosol
formation leading to ''hot'' particles carrying unipolar electrical c
harge and with the presence of gaseous polonium in aerosol system are
noted. The above properties of polonium aerosols make the use of compl
ex highperformance means necessary in order to remove polonium from th
e air.