Abstract
Ukraine is one of the countries most seriously affected by the Chernobyl nuclear power plant accident. The UNSCEAR reported the foodstuffs, which were caused the major intake of radiocesium, are potatoes, meat, mushrooms, and milk, therefore, intake of radionuclides through critical foods were very interesting (or important) in the contaminated areas, if passing over for a long time after the accident. About 50 milk samples were collected from Ukraine and incinerated in a furnace. Radionuclides in milk and milk product samples were analyzed by gamma-spectrometer with Ge-detector. In all milk samples 137Cs and 40K were detected. The concentrations of 40K in milk in Ukraine were almost the same as reported values in Japanese. The concentrations of 137Cs in milk were in the range of 2.0 - 530 Bq dm-3 and geometric mean value is 64 Bq. The 137Cs concentrations of milk in Ukraine were much higher than Japanese one (<0.29 Bq dm-3). Cesium-134 was also found in some samples having higher 137Cs contents. For Ukrainian, an annual effective dose (0.42mSv/y) calculated using the 137Cs intake (64 Bq), was ca. 200 times higher than that of Japanese.
