Radioactivities of 137Cs, 134Cs and 90Sr in the environment of the ''Krsko'' power plant

Radioactivities of 137Cs, 134Cs and 90Sr were measured in samples of soil and agricultural products collected in villages from the environment of the ''KrsKo'' Nuclear Power Plant, Slovenia, Yugoslavia. Among plants the highest radioactivity was observed in grass and consequently in hay. In the case of uncultivated soil, radioactivity, particularly that of cesium radionuclides very rapidly decreases from the surface layer to a depth of 30 cm. Among the agricultural produce the highest radioactivity was found in the root crops and the lowest in fruit. In all samples chemically the related elements potassium and calcium were also determined. Recent measurements have shown, that for most of samples of radioactivity due to 137Cs and particularly 90Sr is practically on the same level as it was before the Chernobyl accident. (author)