SUMMARY
The article shows analyzes of the current scientific data that relate to the biological properties of aflatoxins as dangerous ecotoxicants, nature and patterns of distribution of the main producing mycotoxins fungi, toxic effects and action mechanisms of toxins on human and animal organisms. These data suggest that environmental contamination by these pollutants, their concentration in phytogenic foods and feed raw materials poses a potential hazard to human health, leading to the losses due to high morbidity and mortality of livestock animals. Therefore, the study of bioaccumulation process and further development of aflatoxins management system are urgent questions of modern science.