LS a aft os ees Aoprehonsion of Long Rangco Contamination of ‘Jesen enc. its Fishing Grouncs Japencec apprchonsions over the possibility of longs range raciolo:ical contamination wore very sinilzr to those we oncounterod in the Unitoc. Statos ss a result of NPG operstions, A cifforence in Jnpen is duc to the fact tant nono, if any, of the counting oquipment ia calibrated, Gi tubos arc used without shiclcs, and undor con@iticns whore the background count is apt tobe hishly varinbleo. This, couple¢@ with tho fact that thoy co not kmow the backgrounc activitics of such things as soil and biolosicel matorials, nekos it very difficult to ovalusto the roports, Mrny of tho reports cf "ash" fallin: in various parte of Japan are undoubtedly cust or scot falls that occur normally in any industrial aroa from tinc to tino, Roputablo scientists havc oxamincd scmples of potassium-rich soil ani heve reported thoir data is «rose counte without any roforencc to normal soil beckzround, For this roason I find it vory Cifficult to teke scrious the frequcnt public report of 50 to 100 counts por minute for tho unspecificc size of samples,reportod fron time to timc, At my conference with th: Jaran scicatists anc? government officials on March 22, I explained the vroccéurcs wo use in the States for mnossuring fallout. I urgoc them to usc siniler ;rocecures f@ the seko of uniformity and offored to loan thon the oquizsment we usec, Thoy scomcc. cager to accept anc I roquesto’ 4 sets of cquipment which has since errivod from the Statos, However, since the arrival of this equipment, I have dcleyed siving it to tho Jazancse bocauso in thoir >resent state of mind littlo c¢coc coulc come of it, I co believe, however, tint when the »reecnt confusion subsiccs, it will be useful for the Japanese to naintain a fall out monitoring network and I think we snoulc coopcrate with thom tc the fullest extent, In a conference with Dr. Kocteyoshi on March 26, I informec him of my conversation with Dr. Bugher and his offer in bchalf of the Atomic Enorzy Commission to provice financial support for marine biological studicse directed at the long rans: contamination of tho Pacific. Dr. Kotayosnai, through his intcororctor, cxorcesc’. his asgrceciation for thie offb-zs but cic not pureve the mattor further and hes not approached me sinco, With rogarc. to fallout on tho Jnpenose islands thumsclves, it is to bo rononberad that tho position of these islands in rolatioa to possible sites of woapons tosting is such thet tho Russian tcecing program is apt to proéucc more fallout then cvconts in tho Marshalle or Nevada, Estinatin= tho Whole Body Dose I coubt that it will be possible to make 4 satisfactory estimate of cithor the Bota or Gemme doso the fishormon reeccivec, We know that tho ash foll in such quentitice that th. dock of the ship bocame white, anc there was sufficiont natorial to covclop visible footzrints, Unfortunatcly, this is tho linit of ow informetion on how much ash foll anc how long it romaine’ on the ship, Tho fiskcrmen wrsho. th cocks in order to romove tho ash and accorcin; to thoir rozorte thoir washin; was offective, the veseol arrivec in Yaigu ouch of what remaince waa romoved, Whon