Fallout strontium and caesium transfer from vegetation to cow milk at two lowland and two Alpine pastures

Vegetation-to-milk transfer coefficients for 137Cs, 90Sr and stable strontium were determined for cows grazing on two intensively managed lowland pastures and two Alpine pastures in Austria. The 90Sr transfer coefficient at the four pastures ranged from 0.0005 to 0.0012 dl−1 and correlated with the stable strontium transfer coefficient (0.0006 – 0.0013 dl−1) with the lower values found on the intensively managed pastures. The 137Cs transfer coefficient ranged from 0.0009 – 0.0045 dl−1.