11 GROSS ACTIVITY Table 6—Results of Analyses Performed at HASL LAND PLANTS HASL|NRDL| No. No. 3437__.. ‘ 3438__-_ 3439___- Samprmsc Location ORGANISM Tota ACTIVITY TISSUE Srv d/m/gram Caw dj/m/gram Ca gramis/ gram 0,22 40.01 |---.-----.-- 0.00022 C-Date* d/m/gram ie and in- 4-17-56 621 Rongelap--.} Coconut_...]} ner shell. Milk.-....--.-Quter husk._._. 623 |...do_.....]--.-. do.__.._- Innershell_...Meat and milk.| Outer husk..... 4-17-56 4-17-56 4-17-56 4-17-56 4-17-56 525 |.---W1do......|---..do.....-. 4-17-56 Inner sheil___-- Meat and milk_| 4-17-56 Entire....--..- 4-17-56 2640.7 4341.7 0.11 +0.10 19 +2.7 7lacL. 7 }-.---.---.--_.]-----.---2-26-0,7 0.14 40,06 |-...-.---.-9842.2 0. 047-40. 039 J-__--_.--..6641.7 0.70 40.04 j|-.---.-.-.-3540.7 0.081+0.071 0.00020 2604-230 0. 26 44 0.00038 |_.-..---...--_J--.-----]--.--. 0.00013 480+-210 O62 j....-. 0. 00001 2140-41800 0.048 |_--_.0.00085 375+ 21 11 [---.-0.23 186+ 98 104+ 4.7 0.004 }---..63 |------ 6. 00031 67 29 0.45 |---..- 0.00010 11802-500 0. 62 38 Likiep.....j--... do.__..-_]-- 2. do.....----. 4-17-56 10-40. 7 0.0464:0.02 $441__.- 535 Rongelap..| 4-14-66 42+1.9 0.26 +0. 11 3447. --- 658 |-.--.do.__..-. Arrowroct.._|--.. do.....-.--- 4-14-56 3456_.-. 856 Gegen__. ..|--... do... -.-|...-. do_._..-..-- 3476..-. 580 Eniwetok._|--...do__..-..]--.-. do.-.-u---.- 4-14-66 3492... 726 Enfaetak._.{...__ do... ..]-.... do._....-.-- 4-14-56 6742.1 3505_... 674 Sifo. .-...-.]--_.- 4-14-46 §9-+2.2 3519_.-. $541... 766 807 Utirik._....|...._do...2-}2 do_...-....- 4-14-56 Likiep...-./--__. do... feedo....-....- 4-14-46 2641.6 7341.1 0.22 +0. 06 <0. 13 17 +2.8/ 3. 82.1 *O-Date: Date of counting. |..-... 2452-215 Utirik... ._j....do_-__.-- — do.__....-- 0.85 0. 00020 0. 0096 $03 4-14-56 450+ 21 0.00015 782 536 |-.--.do....-.|.---.dO..--ne-}---n0 do.._.------ 4-14-56 Percent Osi? j-.---.--.-.- 3513__-- 3442.___ Percent Sr 8722.1 0.080+0.043 j..--...-.... 614-:2.0]2.7 40.1 |... 2-22. 3594_.-- Pandanus...|--... do._..---..- 8. 0. * 3041.5 S018 lost lost 30044.1/3.6 +0.15 18043.8) 40.82 |-------....1 343.7 |i... 22. 0. 00010 S730 [.--.-- [_.--.---]------ |... ---2 2}. | ee] ee eee fee eee 0.0012 1370 57 L2 a3 64 +16] 6.00060 1050-620 0.77 30 0.20 +0.06 17° 40.6] 0.00060 1654: 45 0.19 +0.03 36 1.0 0. 0026 1.4 250 +6.4]/ 324 0.00003 0.00070 6.2 3300910 <85 0. 30 25 0.31 61 0. 84 ___-._-- 65 52 «Sunshine Unit = 0.001 uc Sri/kg Ca. B. Marine Organisms and Birds Graph 2 indicates the general level of activity in fish at Rongelap Atoll and the decline of activity with time.’ Tables 7, 8, and 9 report the results of NRDL analyses for the February 1955 survey.* Tables 10, 11, and 12 are for the February 1956 survey.‘ Tables 13 and 14 show the analyses by HASL.®° Table 7—Summary of Beta and Gamma Activity Concentration in Fish and Marine Invertebrates (NRDL)* RADIOACTIVITY CONCENTRATION (u¢/ke) (4) LARGE FISH (>) Location No, of Specimens Rongelap Atoll: North Lagoon... ....--....-.-------------- $i South Lagoon....-...--.-..---..----..--_- 3 Rongerik Atoll: SMALL FisH (°) Activity 8 v 0.22 - 054 No. of Specimens CRABS AND CLAMS Activity & v No, of Specimens Activity B v SNAILS No.of Specimens 1.2 22 49 1.58 4 Li 1,25 2 0.33 7 iM 0.94 3 0. 49 1.76 —(d) Activity 8 19.5 Y 5.6 |-...-.-.[---..-.. Eniwetak......2-..-0--20--02---- een e een 21 0.23 0. 26 2 23 221 }-.-----Utirik Atoll: Utirik.._...2-.---.-.- 402-22 --------- == |---| | -e--e 6 ai4 O04 jou fee eee Likiep Atoll: Likiep_._..-.--.--.----22---------- eee 1; 0.02 0. OL 3 205 01 1 0.12 0.35 |-..-_2--]..-2 fe. Bikar Atoll: Bikar_._...----.---0--- -.--------------- |---| ee | eee |e |e [eee 2 0.39 0.19 [.--..-.-] 2a} (s) pe are in terms of Co® equivalent. (b} 150g, (Ce) <150¢. (a) No data taken. *Collections made about February 1, 1955, Data reported as of March 1, 1955.