UNCLASSIFIED SECRET B. It appears from the agreement between the Utah, Wiscons assays for cheese and milk that sr? dissemination mechanism is indicate considerable uniformity in this distribution. In other appears from these that sr” may not be likely to vary as mich ag anticipated. one might have It is true that the data on which this conclusion inadequate, but recalling the conclusions of the RAND SUNSHINE s that stratospheric dissemination and storage were most likely, t the failure of the long range fall-out group under Dr. Eisenbud more than a few percent of the total debris from the MIKE shot a are correct in strongly indicating that the Sr°~° 90 content does not from spot to spot at least in the northern hemisphere. This conc possibly at variance with deduction A if 1/6 of a SUNSHINE UNIT i regarded as high on a world-wide basis. However, the expected C average cannot be theoretically predicted on the basis of the pre C. The data available etrongly indicate that river weters ieast much less contaminated than rain. soil is the explanation of their purity. afe pure or at It would seem that the agtion of the The or? is removed as to the rivers from the spot where it fell as rain. Further data fully establish this point but it seems likely that they will. D. It seems that sea food in general will be pure. The dat to establish this but the indications are that this is so. It se reasonable on the basis of the mixing which most certainly mist the action of the waves in the ocean, that any material which faljs into the sea will repidly mix and be diluted. Ccnsequently, ons may fully et a very low essay as has indeed been found in the few cases given in Appendix |]A. 1045304 SECRET. oe UNCLIASSIFIEL L ANIL