MICRONUCLEUS TEST OF ERYTHROCYTES AND LYMPHOCYTES IN THE BLOOD OF THEPEOPLE LIVING IN THE RADIATION POLLUTION ZONE AS A RESULT OF THE ACCIDENT AT THE SIBERIAN CHEMICAL-PLANT ON APRIL 6, 1993

We have carried out analysis of the number of blood erythrocytes and l ymphocytes with micronuclei in the inhabitants of four settlements loc ated near the place of the accident which happend at the atomic power station of the Siberian chemical plant (Tomsk-7) on April 6, 1993. In all cases, the people examined showed a considerable increase in the n umber of cells with micronuclei as compared with the control. We obser ved the same people for 2 years and found a gradual decrease in the nu mber of cells with micronuclei. This study shows that people born betw een 1963-1970 have a much higher level of cells with micronuclei, whic h we tend to see as a result of the radiation accident at the Siberian chemical plant in 1963. The data we have obtained allow us to conclud e that penetration of radionuclides into the human organism in the pre natal and early postnatal periods can lead to the formation of stable clones of erythroid cells with micronuclei and a higher level of eryth rocytes with micronuclei which can remain in the blood for a long time .