Iron metabolism parameters (increased level of serum ferritin, appeara
nce of an iron pool specifically unrelated to transferrin, reduced cer
uloplasmin level, etc.) were found changed in subjects who participate
d in liquidation of Chernobyl power plant accident aftereffects. These
shifts in iron metabolism are explained by reduced antioxidant activi
ty of plasma and indicative of mononuclear phagocyte dysfunction, thus
necessitating a dynamic manitoring of this population.