ABSTRACT
The results of many-year cytogenetic investigations on children and teenagers inhabited in radiation-polluted zones after Chernobyl accident are shown. The average 137Cs pollution density in two comparison inhabited zones equaled 111 and 200 kBq/m2, and the average doses of the whole body external irradiation, accumulated in the period of 1986 - 2001, equaled 6. 7 and 11.4 mGy, respectively. The average dose per thyroid gland for all age groups of the population in the second zone was found 1.5 times higher, approximately, than in the first zone. Hence, for the youngest ages (0 - 1 year) these doses equaled 114.3 and 174.3 mGy, respectively.
