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UNIVERSITY OF IVASJIIXGTOFJ Asst. Manager for Operations USAEC, Nevacia Operations Office A second sup~lewent to the 1973-74 Johnston Atoll contract was in the amount of $5977 for the snalvses of samples collected at Ron~elap and Bikini in April, 1974. A report of the first results of a~alyses was submitted to l!r. Tomw M&raw, DOS, on 3 July, and a copv of that letter is attached. Followinfi is a report of the results of the al~alyses for the remaining samples. sample that ~~as lost, have been completed for 38 samples of soil, fish and , coconut crabs collected on Eikini Island and Rongelap Atoll in April, 1974. Ta~le% 1, 2, 3 and 5, and Table 4 replaces Table 4. In the’soil samples, most of the 90 w’e$‘ in the top 25cm of the profiles.. Str ntium-9b levels in the coconut crabs were greater for the Bikini than for th Rongelap samles and, as e:mected, the greatest tissue concentration (’ on Bikini Island in 1974 fall at the lower end of the ranqe of values ) reported by Held (1971, ?PIO-269-8) for coconut crabs collected on Bikini Two samples, the O to 2.5 cm increment from soil nrofile ?2 and the Bikini crab exoskeleton,are being reanalyzed for 9%r because of inconsistent values for the first two analyses. ~~ullet and goatfish collected near Bi!<ini Island in 1.974, conpared with fish collected there in 1969 (Held, 1971), had similar levels of 90Sr but lower levels of 55Fe. Except for the two samples being reanalyzed, this completes the analyses of samples descr~.bed in the Second Supplement to the 1973-74 Johnston Atoll pro~ram. We are presently anzlyzing the remainder of the samples collected during the April, 1974, trip to Utirik, F.onrelap and Bi!:ini Atolls as part of the 1974-75 Johnston Atoll oro~ram. Res;l.ts of these analyses will he forwardetl to you as the;~hec?ve available.
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During the current vcar, we will coordin~te our pro,gram, especially the ecolosy pro~rarn for RcJncelap and Eikini Atolls. A copy of our proposed of the Brookhavcn profiram. This report completes the finzl report for the 1973-74 Johnston Atoll Director, Laboratory of
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Table la. Strontium-90 and plutonium in soil from Profile #l, collected April 1974 on Bikini Island behind the first house south of the center baseline road. * The error terms are one-standard deviation and include errors associated with the chemical procedures, plus counting errors.
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Table 2a. Strontium-90 and plutonium in soil from Profile #2, collected April 1974 on Blkfni Island next ‘to old coconut tree row #24 and just south of the center baseline road. * The error terms are one-standard deviation and include errors associated with the chemical procedures, plus counting errors.
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Table 3a. Strontium-90 and plutonium in soil from profile #3, collected April 1974 on Bikini Island next to old coconut row #24, just north of the first baseline south road. * Error terms are one-standard deviation and include errors associated with the chemical procedures, plus counting errors”.
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Table 5a. Strontium-90 and plutonium in fish collected on 12 April 1974, at Bikini Island. Common No. of Size 90~r * Error terms are one-standard deviation and include errors associated with the chemical procedures, Plus counting errors.
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Table 5b. Iron-55 in fish collected on 12 April 1974 at Bikini Island, No. of Size Species Tissue Fish 55Fe * Error terms are one-standard deviation and include errors associated with tb,e chemical procedures, plus counting errors. ~* Eviscerated whole samples include the entire fish, less viscera.