Table 2° er Mean Concentration of 905, in Coconut Crabs Collected at Rongelap Atoll from 1957 - 1974 Sample Type oconut Crab, Muscle oconut Crab, Exoskeleton . Collection Area Collection Rongelap I Arbar, Busch I Date 1957-58 1974 Number of Samples 1955 1957-58 1974 Arbar I 1959 2 Kabelle I Kabelle I 1959 1974 3 3 1974 1959 1974 in pCi/g, dry 12 4 Kabelle I Kabelle I Kabelle I Arbar I Mellu I Mellu I Mean Concentration 1 14 3 2 2 1 90sr 14 25 120 47 4.8 480 64 1100 240 1600 130 These data were taken from the following sources: Collection Date 1955 1958-1971 1974 Source Donaldson, 1955 LRE, unpublished data This report 27 pCi/g, wet, multiplied by a wet/drv ratio of 4.5. :» This table is a partial reprint of Table 7, NVO-269-32, "Radiological Survey of Plants, Animals and Soil at Christmas Island and Seven Atolls in the Marshall Islands-Progress Report for 1974-1975", V. A. Nelson, 1977.