Appendix Table A. Gross beta radioactivity of the biological samples collected at Bikar Atoll, February 3, 1955, expressed in d/m/g of wet tissue at time of analysis*®. included. Species Land Plants —Ttoconut The 0.95 counting error is Tissue a/m/g Meat 20 $ 3.5 Milk 21 t 3.7 15 t .98 1S Scaevola Birds Fairy tern 2.7 16 t .86 16 t 1.0 Leaf 272 - 20 Muscle Liver Lung Kidney ITleum Bone 38 130 212 91 85 14 t t t t t : 4.9 6.8 21 6.8 7.8 30 Muscle Liver Lung Kidney Tleum 46 31, 182 379 85 t + t = t 3.3 4.8 6.8 17 7.6 Egg Shell Egg yolk 22h : 6.4 36 = 4.4 Skin Noddy tern - Bone Skin 76 ‘ - = 7.6 117 t 17 319 t wy Unhatched chick, gut Unhatched Rats Field rat chick, skin and feathers Muscle Kidney Bone Skin 31 ¢ 5.7 30 + 8.4 33 t 4.6 83 + 13 563 t 4 126 t 8.1 #% Samples were collected seven months after Operation Castle; the plants were counted 3/3/55 and the birds were counted 3/9 to 4/15/55.

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