[Low "Doses" of Radiobiology].

The basic radiobiology problems are considered on the example of the Chernobyl accident. It is noteworthy that a paradoxical disparity is presently observed between the actuality of radiobiology problems in a post- Chernobyl period and low "doses" of efforts from the side,of radiobiologists for their decision. We justify the position that at the present stage of development of a post-emergency situation the existent experimental facts and theoretical notions of radiobiology are.fully sufficient for explanation of the radiobiology and radioecol- ogy phenomena. Special attention is paid to the problem of "low doses" of ionizing radiation. The existence of "hot" particles of a biological origin is experimentally proved. Special attention is also paid to the integral reactions of the biological systems to irradiation on the example of gigantisms of pine-needle of trees in the zone. affected by the Chernobyl disaster. The degrees of actuality of radio ecological problems are given on the basis of rating estimation. The role of radio phobia in the psychosomatic diseases,of population in the area of strict radiation control is considered.