constituted an average of 47 percent by weight cn a wet weight basis ‘74 percent on a dry weight basis), gross beta activity af the fat fraction amounted tc less than 0.5 percent of the total activity on a wet weight basis. Fat content on a wet weight basis had a range of 31 percent ta 65 percent. There is a linear relationship between strantium-90 activity and gross teta activity. Since the fat content of coconut crab liver is variable and the fat fraction contains practically no radicactivity, it is suggested that the radicactivity (and mineral content) of liver samples be compared on the basis of the non-fat solids. (auth) Descriptors: ANIMALS: BETA PARTICLES; ISLANDS; LIVER: ORGANIC ACIDS; FA CIFIC OCEAN; RADIGACTIVITY; STRONTIUM 90 Subject Codes (NSA): HIOLOGY AND MEDICINE Recard - 4i 196484 NSA-13-013135 MEDICAL SURVEY OF RONGELAP FEOPLE, MARCH 1958, FOUR YEARS AFTER EXPOSURE TO FALLOUT Canard, R.A.3; Rebertsen, J.S.; Meyer, L.M.; Sutow, W.W.: Wolins, W.3 Lowr ey, Ae; Urschel, H.C. Jr.: Barton, J.M.3; Galdman, M.; Hechter, H.: Eicher, M.3 Carver, R.K.; Fatter, DW. Breekhaven National Lab., Upton, N.Y. Publication Date: May 1959 38 p. Primary Report No.: BNL-534 Journal Anneuncemert: NSAIS Availability: NTIS Document Type: Report Language: English Results are summarized from a medical survey carried cut in March 1958 an inhabitants of the Rongelap Islands exposed to accidental fall-cut radiation during Operation Castle in the spring cf 1954. The habitation cf these pecple on Rengelap Island affords the opportunity for a mest valuable ecological radiation study con human beings. The various radicnuclides present on the island can be traced from the soil through the food and inte the human being, where the tissue and argan distributions, biclagical half-times, and excretion rates can be studied. Noa apparent acute cor subacute effects were found at thie time related tc the gamma dese af 175 r received, with the possible exception of hemapoietic findings indicating a persisting lag in complete recevery of platelet levels af the peripheral blood. In the males these mean levels were 11 ta 14% and in the females 9% below the corresponding mean levels of the comparison population. History and physical examinations revealed no clinical evidence of any illness ar findings during the past year or at the time of the survey which cculd be related to whole-body exposure. Estimates of body burdens of radionuclides were determined by gamma spectroscopy and by radicchemical analyses of urine saniples. Thcse measurements showed an increasc in the body burden of cesium-137, strantium-90, and zinc-65. Surveys were also made an the incidence of intestinal parasites, and an bleed groups and anthraopolagical background of the Marshallese. (For preceding period see BNL-501.) (C.H.) Descriptor Groups (Splits): BLOOD--BLOOD FORMATIOGN-~BODY--DISTRIBUTION-FALLOUT--FOOD--GAMMA RADIAT ION--HALF-LIFE--ISLANDS--MAN--MEDIC INE--METABOL ISM--NUCLEAR EXPLOSIONS--PACIFIC OCEAN--PLATELETS--POPULATIONS--FPROJECT CASTLE--QUANTITY RATIO--RADIATION DOSES~-RADIATION EFFECTS--RADIOISOTOFES-SEX--SOILS--TISSUES--VARTIATIONS aa 900h9 b