EN
Purpose: We presented results of long-term monitoring of incidence malignant tumor among the adult population of Belarus, according to the Belarus state register of the persons, undergone to influence of radiation owing the accident on the Chernobyl atomic power station. Material and methods: The analysis of primary incidence of malignant tumor among various categories of the population living in Belarus and undergone the influence of ionizing radiation owing to the accident on the Chernobyl atomic power station is lead. The analysis is leading on the directly age-standardized parameters designed with the use of the world standard population. Levels, dynamics and growth rate in comparison with a similar parameters control group were estimated. Those localizations of a cancer which taking into account world experience can be radiation - induced to have been included in research only. Results: The carried out research has revealed of statistically excess of a level and rate of incidence malignant tumors lung, stomach, colon, skin, urinary bladder among various categories of the population of the injured from Chernobyl accident in comparison with the control group. The most expressed distinctions were characteristic of the liquidators. The changes of levels and dynamics of incidence are revealed for organs of the breath, digestion, urinary system, which are the basic ways of receipt and deducing radionuclide’s. Among all observable groups of the adult population the significant excess of incidence by thyroid cancer is revealed. Conclusion: Among the adult population of Belarus should continue to monitor the incidence of malignant tumor, provide an assessment of doses to different groups of affected people, plan and conduct analytical radiation-epidemiological studies.