keen ow ne PY nt re SH oh activity wed (ahto activation of stable elements by neutred eagture (fer cumple, te8 ew). Using the increased y-activity on the ground as an ints of Till ccotentuntion tn eposed forage, I?) ingeeted by enttle end subsequently appesriig in milk can be estinnted. The amcunt of ean- taminated feed consumed needs to be lmow unlesethe correspondence between pectivity on the ground and I) activity in the milk can be established for a similar incident under the same farming practices. Game eeasure- ments were wade by othere during the 1962 incident. then (if7) thgse tots ere released it should be possible to eetiante tte 17? eating fren previous incidents by this ssthod. The Utah State Departeent of Health began daily sexsurenente@ | gross beta concentration in air et Suit Lake City im 1956. Sp. Great 3. Winn hes ands these complete sapesde putijable te an. Gualip oix wee Gomm themagh 0 filter continseeslyfer ict 1 hewre. fm Ge tise gate ware bee-commead9fN68'8 etalwitt Qevatly £-FTomaetan. tests. ttecua2 11 tecegredduringponte = ww ok particularly helpful im cociguing at cumertretionte pletiigill sali.” Additional air beta eesesrenente have been ande im Utah hy other a