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LABORATOlZY OF RADIATION BIOLOGY Dr. John Wolfe, Chief Environmental Sciences Branch Division of Biology and Medicine Washington Atomic Energy Commission In a telephone conversation on April 15, your office was informed through Al Seymour that in response to questions from Cordon Dunning certain data concerning strontium-90 levels at Rongelap Atoll would be reported to you by telephone on April Dorothy South has just completed tabulating some of these data so we thought it best to get this much off to you Please find enclosed three tables: (1)' Strontium-90 in Pandanus samples collected at Rongelap Atoll - March, 1958. (2)llStrontium-90 in Pandanus samples col+eeted at Rongelap - August, 1958, (3) Strontium-90 in Pandanus fruit, These tablesshould follow page 82 in the two files of assembled Rongelap data. Copies are also enclosed for Dr. Dunning. Research Assistant Professor
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Date Number per gram Strontium ability ISl&!.ld collectad samples wet sample units d/m/g wet Note: Three fruit samples, one each from Rongelap, I&belle, and Eniaetok are now in process and the results will be available later.
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Strontium9*in Pandanus Samples collected at Rongelap Atoll - August, 1958 per gram per gram41 Strontium Island SaUWle dried sample wet sample wet sample units 1) These fruit samples are now being processed and the results will be 2) Limit of detectibilityof S-90 in this sample is 46 d/m/g dried sample. 3) These results are in mg of calcium per gram dried sample. Wet sample weights are iot available for these samples. 4) Errors for activity values are determined from counting error. 5) Errors for calcium values are standard deviations for replicate analyses.
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Date Number per gram Strontium ability Island collected samples wet eample units d/a/R Wet Note: Three fruit samples, one each from Rongelap, I&belle, and Eniaetok are now in process and the results will be available later.
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Date Number per gram Strontium ability Island collected samples wet sample units d/m/R wet Note: Three fruit samples, one each from Rongelap, &belle, and Eniaetok are now in process and the results will be available later.
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Date Number per gram Strontium ability ISlELMi collected samples wet sample units d/m/g wet Note: Three fruit samples, one each from Rongelap, I&belle, and Xniaetok are now in process and the results will be available later.
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StrontiuR~*in Pandanus Samples Collected at Rongelap Atoll - March, 1958 wet sample strontium Island Sample dried sample wet sample mg Ca units 11 Limit of detectability of Sr9' in these fruit samples is 2 d/m/g dried ~ 2) srroq3 given for t;ctivityvalues are obtained from counting error. 3) Error given for calcium values are standard deviations for replicate
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Strontium9O in Pandanus Samples collected at Rongelap Atoll - August, 1958 per gram per gram41 Strontium dried sample wet sample wet sanlple units These fruit samples are now being processed and the results will be Limit of detectibility of Sr90 in this sample is 46 d/m/g dried sample. These resulta are in mg of calcium per gram dried sample. Wet sample weights are not available for these samples. Errors for activity values are determined from counting error. Errors for calcium values are standard deviations for replicate analyses.
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Str”ntium9o in Pandanus Samples Collected at Rongelap Atoll - Uarch, 1958 per gram21 per gram wet sample Strontium Island Sample dried sample wet sample mg Ca units 1J Limit of detectability of Sr90 in these fruit samples is 2 d/m/g dried %. 2! Errors given for activity values are obtained from counting error. 3) Error given for calcium values are standard deviations for replicate