A quantitative relationship has been established between the transfer
coefficients of cesium and strontium radionuclides into natural grasse
s and the soil properties. It is shown that the Cs-137 coefficients (T
Cs) differ up to 760 times and the Sr-90 TCs differ up to 80 times. Th
e TCs vary, less within individual regions with a relatively homogeneo
us soil composition.