[Modern problems of biodosimetry]

Humans have different radiosensitivity. Besides, many factors which are not under control can change significantly biological effects of radiation. Some of substances are present in our food--residual amounts of fertilizers or herbicides can be mutagenic or influence mutagenic action of radiation. In the last case synergetic or antagonistic effects can be observed. At the same time many food products contain radioprotectors or antimutagens. Some drugs, stress, virus diseases and so on can change biological effects of radiation too. Radioadaptive response is one of the most significant factors which can be responsible for incorrect radiation dose evaluation. All these uncontrolled factors may be responsible for significant mistakes of evaluating radiation dose by biological methods. That is why biological methods can be used for bioindication but not for biodosimetry.