[Exposure to radioactivity in the perinatal period following the reactor accident in Chernobyl].

After the Chernobyl nuclear accident on 26 April 1986 Europe experienced increased radioactive radiation by contamination of the atmospheric aerosol and the soil. Foods emanating radioactive radiation were ingested by the population to an increased extent via the food chain. This proportion of radioactive radiation accounted for about 80% of the total irradiation exposure and prompted us to examine mother's milk, amniotic fluid and placenta of newborn in respect of their concentrations of radionuclides I-131, Cs-134 and Cs-137. Due to the short half-life of I-131 an increased concentration of this substance was seen only during the first eight weeks after the nuclear accident. On the other hand, however, there was a clear increase in Cs-134 and Cs-137 from this time onward, the highest concentration of these two nuclides being measured only after one year after the accident. Despite the enhanced exposure to radioactivity of mother's milk and amniotic fluid, the guideline values laid down by Federal German legislation were not exceeded.