24 RADIOACTIVE CONTAMINATION OF AREAS IN THE PACIFIC OCEAN FROM NUCLEAR TESTS Unlike localization in the liver of mammals, Zn® was found distributed fairly uniformly among thetissues. The Co® found in clams Table 24—Radiostrontium, Radiocesium and Radiocerium-Praseodymium in Biological Samples, December 1954-January 1955 (AFL) PERCENTAGE or Total TaLanp ORGANISM _ Bre Csi? Cela Priv wat June-July Rongelap Atoll 1855" Gejen_...--..- 31 coconut milk.....)<0,1 |<0.1) Kabelle......- 37 Caulerpa._...--.-|--.---|-----30 cocontt milk. -..--}--....}-----. 38 Halimede.._._----|...-..|-----. 39 coconut crab 0.86} 48 muscle. 41 mullet muscle..__| 0.6 0.0 Labaredj....-- 29 coconut milk... _. <0.5/<0.5 42 tern bone_._...-_- 0.0 43 tern bone-.__.-...| 0.0 Mellu.......-- 40 dogtooth tuna muscle. 0.0 Rongelap....-. 27 coconut meat..._- 0.0 6.0 0.6 0.0 0.0 0.0 a8 (AFL) July, Aug. 1866" 0.0 71. 0.0 28. Lo 165 0.0 2. 6. 0.6 TotaL BAMPLE aimle Pandanus fruit_........-....---- Bonito bone_..._.-....---------- EKabelle._...| 15 61. 10 mm diameter. 3.7 *Dates of analysis. 42 0 61 Goatfish muscle_.-........------ Lagoon bottom, depth of water 6’, particles >0.074 46 32 29 12, 60.0 29.0 0 0 0 0 <0.6 Labaredj_..| Tern muscle.........-..-.---..- fraction containing}.°P Mch--; 68. 21 300 31 5, 600 0.7 25 0 180 Kabelle_...- Grouper musele__...-....------Grouper liver...----.----------- 110. 3¢ papaya meat__... 0.1) Tor orywv Morindafruit.....-.-.---.-----47 Labaredj...| Arrowroot corm.--.----.-------40 Kabelle..__. Coconut crab muscle.._...--.--440 Coconut crab liver....--.------1, 200 Coconut erab salts of earapace.../_._.--.---.Coconut crab cuticle of carapace.|_...-------Labsredj...} Giant clam mantle and muscle-1,700 Giant clam Kidney_...._._-----. 5, 200 Do_..-- Bonito muscle._...-....-........ 150 Bonito liver........-.....---.--1, 700 13] <0.2 PERcent . 110 Rongelap...| Coconut mest....-.........---.- <0.4 78, Br®, Activity 26. 00 33 squash meat._--_- >0.1] 0.0 76. Table 25—Sr™ in Biological and Lagoon Bottom Samples from Rongelap Atoll, October 1955 0.0 28 coconut milk..._. 0.0 32 pandanus fruit.../>01! Sept., Oct. 1955" 81. 0.0 72, 0.0 67. tively was verified by laboratory experiments.) IsLanp CTIVITY ere accounted for the major portion of the activity. (The ability of clams to concentrate Co® selec- 0 0 0 40, 000 7th inch. oe 25, 000 0.7 *Wet weight basis except lagoon bottom which is on a dry weight basis. Table 26—Radiostrontium in Plants Collected at Rongelap Atoll July 23-24, 1956 Counted September 4, 1956 (AFL) PLant TissuE ISLAND Breadfruit._......----..------ Pulp_-.-..-.-------.------ Rongelap--.-.-...-------Morinds_.......--.......---- Pulp and seed._... do Pandanus......-------.-.---- Beed....-.......-.------.-]----. o_.-----neee eee eee Arrowroot.__..-.-----.....--- Pulp and skin.....-......-|--... Go. --. 222. ee nn eee bop Coconut....--.----------..--- Milk..-._--....----.------]----. do.....--.--.---..----- aac Do-._.-.....-------------- Meat...---2222.-- ee ee ee ee-|--n oedo... eee Do..-...--.--------.----- Milk. nee e nce cece nnn Kabello...---....--------Do_-~neeeeene een ene --- Meat_---.--....-.-----.--|----- do.....---- 2. wee ToraL BA actrviry d/m/g wet Bre d/m/g wet Caltrom e/g wet 42.0 80.4 70.7) 108. 0.82+-0. 03 3.140.1 2.2406 2. 540.6 0. 000628 0.00136 0. 00450 0. 00333 262 64.6 36. 9 148 0 0 0 Os “SUNSHINE Unrts'’ ---[--- 501470 604-0 1502-44 20430 Bri: Sr - 1.7740.10 3. 68-0, 22 0. 7640.06 1. 4840.05 --. ---]-~Jee e eee fee eae fan eeeeee ee Mra Ue ame ree