41 28 is Von. . a ee eke so ‘ _ BROOKHAVEN NAHONAL LABORATORY shal eee Hea 2, 1 & og . . ce ASSOCIAIED UNIVERSITIES, INC. Upton. New York 11973 Safely & Lavionmenlal Protce figty bavisian (910) 345 4210 October Dr. Shun'tichi Hisamatsu School of Medicine 1l-l-1, Dear Dr. 31, 1978 BEST COPY AVAILABLE Akita University Hondo ee ee ee Akita ULO Hisamatsu: Your paper, which appeared in the Health Physics Journal, Vol. 35, August 1978, is indeed facinating and of extreme use to those persons engaged in understanding the distribution of fallout material. I congratulate you and your colleague, Dr. Sakanoue. We are at present, trying to go back to March 1, 1954 and trying to estimate kind of exposure (doses) that the people on the islands did receive by analyzing the samples collected at the time from the inhabited islands of Rongelap, Utirik and Rongerik for 1491. However, these samples are inherently diluted by the large amount of soil present thus making the determination of 1291 rather tenuous. Reading your puper and recognizing that virgin fallout material igs available prompted me to write to you and inquire a) whether it could be possible for this laboratory the to get from you or whoever has jurisdiction over this "Bikini Ash" a few grams for l2Sy analysis; in Japan do an these or b) (-39) whether I could request that you or some other scientist 129; analysis for us. We would be most happy to share our findings on 1295 in the soil samples islands and hopefully come out with a meaningful dose pattern estimate. from Thank you Yours truly, < pn f #7} "4 wh AntC. Janakiram R. Naidu, Ph.D. Ecologist JRN/slg