Reg) Ibeda, Nwi Yeshihara, }. hen. Sec, Jon. «Japar) vor. woes Cournel Article Journal Arancuncement: EDESOO8 Suafile: TIC) «(Technical Information Center). work Location: Japan @betract: The radiochemical analysis of ane sco-called Bikini ashes which fell on a Japanese fishing boat, the No. 5 Fukuryu Maru on March 1, i984, are described as of seme 25 days after deteration ef the bomb. The cellected sample 1¢/sup 7/ counts/min.) was ignited and dissolved in 6N HC1., insalebles were filtered off, and the activity of emall aliquots af tre filtrate was measured. Total activity was estimated about 19/sup &/ counts/min. Ru (lomq.) was added ta the filtrate at a carrier, the acidity ef solution wes adiusted tc EN, H/sup 2/S was passed through to precipitate My e= gulvise, ard the precipitate was disecived wita FNO/sub 3/, H/sub Sot, EMad¢sup +7, and concentrated Weub 2°C/sub 2’, The appropriate aii Thien of the distillate wes taker uc im a@ caunting dizh and evare to dryness, the activit, wae measured acd found ta Ee 1.5 tive Clhuits “mid. Ferrrd - 7} ODieLOS Frie ia: | ARC L3 Ale-}isSieyoe, EDB-89; 9752382 Vatles Flutcmiaum comcentroations ip fieh acc seaweter fron beagaiein Ateall Satrocr Nashhin, ViE.s wena. b.t.p Eagie., Fad. (Talifaraia Univ., Live-mo-e US), eurernce Livermore Lat.) Sit asl fe. ‘United tingicm) 43734, pate: Crt 1977 S4S-EF5S5 a, 2 ATES > t Tene: Journal f-ticle g2: Ecriish ac urcerent: EDRIoO% “PY (nen-OS Acenmirde: raput). Caviccu: Luited Stetes m% foliow-uc stucy hes pzen mece to zssece the cancentc-ations of ssip c40/Fu and /eug 1357 ’Cs in the marine envirenment of pwajal e:n Atoll. Fish collected fram the atell in 1972 had body burdens cof nlatenion thet were substartialiy higher than concentrations i similar EReCIES fram lecaticns ceontaminated only witn clobal fallout. Recent resu:ts, hewaver, indicated that Ewajalein lagson seawater contained levels of pluteniam more similar te glebal fallout levels found in north equatorial Pacific surface waters. No satisfactory e:planaticon for the reperted piutonitm levels in fish from Ewajelein cellected in 1972 could be decuced from the available data. The highest glutenium concentrations reperted for the 1972 reef species cf fish could expose man, throuch irzesticon of marine foods, ta a dose rate as na3h as 2S% of the proposed EFS gcicelire for ennval total transuranic cose cate to bone (3 mrac/yr ever Tlovci The gresent results show the dose rete from the marine facd peatcway 12 “Garer ta ¢ 008% af tie recommended EFA value and is consistent with the view that kwadslein Atoll are evceccec from globel falicut. contains aiutanium concentratiens trat Tre magnitude of tre clutenium ievels