Tolerable Parameters of Pastures Pollution with <sup>137</sup>Cs and <sup>90</sup>Sr and Coefficients of Radionucleids Transition from Legumes into Cow Milk
90Sr transition ratio from diet based on green mass of Lucerne and foxtail clover into milk of cattle is equal to 0.14 and 0.18% correspondingly. 137Cs transition ratio from diet based on green mass of Lucerne and foxtail clover into milk of cattle is equal to 0.63 and 0.78% correspondingly. To get a pure milk, the usage of Lucerne green mass with the purpose of mono-forage in summer diets of lactating cows is possible if it is cultivated on territories with radiation pollution density 90Sr up to 5.55 kBk/m2 (0.15 K/km2) and 137Cs - 925 kBk/m2 (25 K/km2). What concerns foxtail clover, the limit of radiation pollution density of forage grounds is 3.7 kBk/m2 (0.1 K/km2) for 90Sr and 925 kBk/m2 (25 K/km2) for 137Cs.