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Declassified record · U.S. Department of Energy

Letter to B Franke, Subject: Information Requested on Color Coding Maps in the Marshall Islands Book (Encl: Color Coding Used on Maps)

Dated
Jul 14, 1989
Document type
Correspondence
Length
14 pages
Open the original scanArchive record OSTI ID 16383269 · public domain

Document text

Machine-read from the scan, so expect some errors. Lines that couldn’t be read are left out.

Page 1

Enclosed is the information you requested on the color coding of the ma;s in the Marshall Islands book. Also enclosed are copies of pages from the published Livermore report, LCRL52853, Part 4. There is a discrepancy between this and the preliminary draft, the Pu value of 4 pCi/gram for Arbar did not appear in the published With best ards,

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COLOR CODING USED ON MAPS The color coding used on the maps in “The Meaning of Radiation for Those Atolls in the Northern Part of the Marshall Islands that Were Survey in 1978” was based on the concentration of radionuclides (mainly Cs and Sr) in the top 5 cm of soil. These values were taken from a preliminary draft of the report by Dr. Bill Robison, Lawrence Livermore National Laboratory. The following are the soil values and the color codes for Rongelap. The color code used The values for Rongelap follow:

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Table B-l. Average 137Cssoilconcentrations from the Northern Marshall Islands survey. of oto5 Oto 10 Oto 15 0 to 25 0 to 40

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of oto5 Oto 10 Oto 15 0 to 25 0 to 40

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of oto5 Oto 10 Oto 15 0 to 25 0 to 40 a Code letter for atoll. b Code number for island.

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Table B-2. Average 90Sr soilconcentrationsfrom the Northern Marshall Islandssurvey. of oto5 Oto 10 Oto 15 0 to 25 0 to 40

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of oto5 Oto 10 oto15 o to 25 0 to 40 a Code letter for atoll. b Code number for island.

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Table B-3. Average 239+240 Pu soil concentrations from the Northern Marshall Islands Number 239+240pu (Pci/g dry weight of soil) of oto5 Otolo Oto 15 0 to 25 0 to 40

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Number 239+240Pu (pCi/g dry weight of soil) of oto5 Oto 10 Oto 15 0 to 25 0 to 40

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of oto5 Oto 10 Oto 15 0 to 25 0 to 40 a Code letter for atoll. b Code number for island.

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Table B-4. Average 241 Am soil concentrations from :he Northern Marshall Islands survey. of oto5 Oto 10 Oto 15 0 to 25 0 to 40

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of 0:05 Oto 10 Oto 15 0 to 25 0 to 40

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Number 241Am (Pci/g dry weight of soil) of oto5 Otolo Oto 15 0 to 25 0 to 40 a Code letter for atoll. b Code number for atoll.