Inhalation. The ratio of volume of air respired by a 3- to 4-year- ; "xERO} COPY There are re- However, in the interviews none of them listed dried fish as having {xero’ Cory estimate. oP) Incidentally, LASL. assumed this mode of intake and calculated a dose of 150 rad.? The thyroid weight used was not given, but was probably 20 grams. We would calculate 160 rad, in very good agreement with the LASL 3300 rad. thyroid weight range of 1.9 to 3.1 grams, the range of total dose is 520 to The most probable dose from Te ‘gs then 490 rad and the total dose 1270 rad. Considering a range in the thyroid burden (5.6 to 22.4 pCi) and a were also 11.2 wCt of 19! (range 5.6 to 22.4 pCi). and, therefore, had the same intake as adulta; i.e., their thyroid burdens been eaten during the time before evacuation. /° Under these circumstances it is reasonable to assume that children drank the same amount of water racks. village doctor reported that the "water turned yellow." As far as food ia concerned, the most likely source is dried fish. Fish were dried on open ports that it “rained a little’ on the afternoon of March 1 (D-Day). The very likely that this was the main source of oral ingestion. after the event, but most of them admitted they drank water anyway. ? The method of collecting water by runoff from the roofs into cisterns makes it 2. Oral Ingestion. At the time of the event, the Rongelap people were on a water ration of | pint per day. They were wacned not to drink water .o 685 670 o 175: 1270 1445 200 3300 3500 Most probable Max REFERENCES The most probable dose is, therefore, in the range 700 to 1400 rad, The fiasion yields for p28 with high-energy neutrons aa given by Weaver Sharp and Chapman, “Exposure of Marshall Islander s and American Military Personnel to Fallout," WT-938 (1957). 10 Handbook of Biological Data, William B. Spector, Ed., p. 352 (w. B. Saunders, Philadetphia, 1956). ®pocumenta Geigy Scientific Tables, Sth Ed., p. 254 (S. Karger, Basel, Switzerland, 1959). 9 Mochizviki, Mowafy, and Pasternack, Health Physics , 9, 1299-1301 (1963). Strom, and Kileen, NRDL-TR- 633, were used. 7 6 USNRDL-TR-86. Ng, Yook, private communication (1964). active Fallout Material," Radioactive Contamination of Human Beings Accidentally Exposed to Radio- Cohn, Rinehart, Gong, Robertson, Milne, Chapman, and Bond, "Internal Fallout Material and Determination of the Dose of Radiation," Chapter I of TID--5358, Some Effects of jonizing Radiati on on Human Beings, 3 Harris, personal communication, cited hy both References 3 and 4. 3cohn, Rinehart, Gong, Robertson, Milne, Bond, and Cronkite, "Internal Deposition of Radionuclides in Human Beings and Animals," Chapter V of TID-5358. Isondhaus, Sharp, Bond, and Cronkite, "Radiation Characteristics of the intake. The actual intake was undoubtedly a combination of the two modes of 1550 350 Total Qo 510 175 Most probable 0a 6 “=~ 6.8 wCi) and the variation in thyroid weight (1.9 to 3.1 grams), the dose is in the range of 200 to 1350 rad. 200 1350 150 200 Radioiodine Max Whole-body Min Thyroid dose (rads) to Rongelap girdis ages 3 to 4. Inhalation } Oral Ingestion SUMMARY | | The moat probable dose from 3! is then 150 rad and the dose from all isotopes if 510 rad. If we consider the range of thyroid burden (1.7 to Assuming the Rongelap children are similar to those of New York children, the mass of the thyroid of the children is 2.5 + 0.6 grams. s 6.8 pCi, burden of these children would then be about 3.4 wCi with a range of 1.7 to maximum rate of oxygen intake” and (b) from the vital capacity® and maximum respiration rate.’ Both methods give a ratio of about 0.3. The thyroid old girl to that of en adult can be estifnated in two ways; (a) from the 1. atte < é =

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