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Machine-read from the scan, so expect some errors. Lines that couldn’t be read are left out.
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to 400;Wer+longehp Island average 400 mxhlunl h50; Utlrik and Bilw 9 March. Rough veather prevented landtig all islands;inhabitatedislands and as w others as possible suxweyeds Able-llt+rikIEland 30 tis Oa Baker-Agn Island LO b PaloelapAtoll 6 March Kaven Islmd 1.8. Wotho Atoll 6 Y!ch-Wotho Island 0.8. Zero SS Rogue dep=ted Ebeye$ Kuaj 010804 Mike entered Channel ~G 3~:~o&’A~~(j”~~~&#% & tersupper deck> 10 to 30 on rope and camas. Prior
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unce-tnty when decks last vashed- Mastir adtisedto wash decks, and uas told that actftitynot harmful but undesirable. “ Wjit Island 7 March approxhately ~. Gflbert Island air may indicatedmaximuQ reading .08l IJaterMKI soil samplestaken from above locationsuill ~ Zoruarded b NYOO AEC for anal~is. Personal propertyof
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0- Pig. 1. Collecting stations In the central the Eniwetok Test Site.
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Tarawa, Pcmape, and Kapingamarangi, K contributed the major portion of the radioactivity. Other samples collected at the same time contained w181’185, radioisotopes Identified with the 1958 fallout. Some samples, such as coconut crab abdomen and whole fish from Wotho, coQtained 2n65, whereas others, such as land plants, contained none. Some of the land plants contained measurable amowts est level of Sr90 pace from Wotho was found in a sample of coconut crab cara~” (18 ~c/g dry) . The concentration of this isotope by the carapace of land crabs at E@wetok has been reported by Held (1957). Departmentof Energy The relatively rapid decay of beta radioactivity in some of the samples collected in 1956 at Tarawa, Ponape and isotopes. A gamma Spectn.m analysis of one of the samples (leaves and stems of a Messerschmidia plant from Wotho) showed that Zr95-NI)95were the predominant radioisotopes in this sample. fiomas et al. (1958) found that these isotopes—— approximately 84 per cent of the total radioacduplicate sample. The presence of short-lived s the 1956 samples indicated recent fallout at *
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\ 1. Surveys were made in 1954 to 1958 to determine the IgeqraPhical limits of the radioactive contamination from the tests in the central Pacific Ocean. 1Collections of bio>qical samples and soils were made at one test site island (Bikini) and ten “off-site .). The gross beta radioactivity decreased with distance._ Erom the test site; in 1956 and 1958 islands within a 130nile radius contained at least ten times as much radioac- - tivity as the other islands. 4. The levels of radioactivity also were related to direction from the test site. In 1955 tie islands to the east contained high levels of radioactivity. In 1956 and 1958 Tarawa, 800 miles southeast of the test site, contained very 1- levels whereas Kapingmrangi, approxi~tely the s= distmce to the southwest, contained significantly higher amounts of radioactivity. De!JatimentotEnergy radiaisotaPes present in the majority of the smples.