ta CHAKRAVARTI Table 1. Description of food rations collected at Rongelap Island in September, 1959 (each sample is a 24-hr ration). ‘eaten boiled. a chowder or wt The 9 > the sun aiice Total Sample no. 3. 1 -d or boited, Deseription a) Pandanus paste. boiled rice y rec b) ‘ain island or 2 pomarny on n the area ts _ wheat dour, ar to be the products are sh as sardines, ndy. In 1058 ere consumed. iported foods. ‘HODS uring ~: } at Rongelap osition and the amposition and tividual. (Bwio 4 Neil Morviss, urist at Runee‘he authors coluf the sampres uples were then + tae 4 a ep bo oeenut seat teen. b) Pandanus “pie” ¢) Baked fish 30 16 2 a) Breadfruit, baked b) Coconut and bread dough, 73.85 4 6 Pot ree if miscellancous v rations of prew samples com- ially seen to be any samples of ne samples protod. epancies. Sample 7 8 <telh Catuia of obtaming quantitative data an these areas. The components of constant weight in (Table 1}. The entire then homogenized in cach sample were dried to the laboratory at Seattle diet for each individual was water with a high-speed blender, ured at 98°C, and pulverized to a tne tat, protein, carbohydrate, and radiochemical anal- yses. Portions weighing 40-250 g were wet-ashed with HNQOs and H:O:, and the ash dried in 250-ml 87.42 beakers for gamma-ray spectroscopy. 24 31 17 13 boiled 49 peak and subtracting the background counts. The counting efficiency for the gamma energies meas- a) Coconut, ripe b) 13 papaya 72 37 (321.69 gl 243° 80 197 203.16 a) b) ¢) d) e) Breadfruit. baked Coconut w baked dough Fish, baked Bread, local Coconut, entire 203 203 126 75 50 484.10 t> Rice, hoiled 201 a) Pandanus keys. raw b) Goatfish, baked WS 26 c) Sardines, canned 101 dd) Rice, hoiled 721 a) Fish, baked b) Bread. local 155 145 c) Rice, boiled a) Rice and Ash mixed b) Rice and fish mixed 314.90 440.50 with standards with an error of + 10%. (1958), in which a combination of nitric acid precipitation and ion-exchange procedures is used. Calcium was determined by permanganate titration of oxalic acid and confirmed by fame spectrophotometry, with the internal standard technique ot Chow and Thompson (1955). Potassium was determined by flame spectrophotometry at 766-mya wavelength, and independently confirmed with estimation uf potassium by titration of the cobaltinitrite with potassium permanganate ( Hibbard and Stour, P33 Soditm was trumpet ot FSO. wavelength. The standardization procedure and general function of the system have been described by Chakravarti and Joyner (1960). In determining magnesium, an aliquot of the ashed sample was dissolved in O.1N HCI and the solution passed through a Dowex-30) N& 100-200 resin column of precalculated capacity. Intertering anions were removed by elution with two-column volumes of distilled water. The resin was then stripped of cations with three-column volumes of 66 94 622 421 64 ured was determined by calibrating the instrument Following analysis by gamma <nectro-ccpy. the ashed samples were dissolved in a known volume of IN HNOs. Strontium-90 was determined on an aliquot by the method of Kawabata and Held 06 a) Rice and fish mixed b) Bread, local c) Rice d) Sardines, canned “ from oa omady at) Miajuro cuinted wut tne ditficulties baked c) Bully beet 2g, appears to be jgunt consumed. come “snacking,” upese are irregt- 81084. C1937) powder. Subsamples of the powder were taken tor mi~ mne Rongelapese Thererore, all of the samples collected © Table te should probably be considered es comms tewerd the qaw side dur total consumption, However, there does appear to be a reasonable agreement with «quantities listed by Murai c) Bread d) Bully beef e) Ship's biscuit milk, not saved) 5 41 lar and it was impractical to follow each individual throughout the day. The gamma-counting equipment consisted of a 3-in. thallium-activated sodium iodide crystal used in conjunction with a 256-channel analyzer with a digital print-out. The total counts per minute under the photopeak were calculated by summing counts per minute of all channels included in the a) Bread, local «coconut ng to be reason‘ 374.08 252 195 Co dec ahe disi mune 4 253 c) Bully beet sandwiches f) Rice w/coconut milk, e University of rea trite Partly baked bread dough with bully beet d) Sardines, canned 2 e) Boiled rice w/coconut milk 249 3 Ansanitt Mage 8 By >See bes ot season, °° AEEIA> ae oar vet “h potable in Poon eadb ned Cmined form onty an ley are used ese are vVisit- Wet wt. dry we (er) (z) AND HELD 2N HCI, and the eluate was neutralized to methyl 262.30 orange with concentrated NH,OH. Calcium was removed by precipitation with ammonium oxalate iollowed by boiling and filtration. The filtrate was