Table §. Comparison of levels of p-radioactivity in invertebrates at Rongelap Atoll in March with those in August 1958 on both wet and ash weight basis expressed in pc/kg. Organism Tissue Sponge " Sea cucumber Holothuria atra tt " n " 1 it integument " " v ' " gonad i 1 " integument " " " tl " i gonad gut " " " integument Actinopyga mauritiana is | " " " " 7 " O64 .058 .016 12 O48 2.0 .14 JAD «4.0 wll .037 94 .15 79 .084 2.0 "1 " " " tt Tridacna noea it t! " Rongelap integument Tridacna noea HW 1.8 .058 i " atichopus nN 47 .039 Kabelle gonad " integument Kabelle mantle Rongelap muscle " gill " vise. mass " kidney " Kabelle & it " tt " mantle n 't 'T gill " " " " visc. mass " ut a ! " it rf Hy Tt muscle Anielap tt T kidney if W muse le mantle " it tt gill ' " " visc. mass " Hippopus " i" Tridacna gigas " iw kidney mantle " Kabelle " t muscle " n " gill tt It V vise . "t ! tt v kidney " mass Ash 91 " gut Wet Kabelle Rongelap Eniaetok Kabelle Eniaetok gut Ash 1.4 2.0 4.4 " Mi Clam " gut Wet August .083 Rongelap Roggutsu gonad March Rongelap Eniaetok " coral " 0 tt Locality "W tt 014 13 .033 O14 .O5 005 .096 56 .10 8.2 .14 42 .058 1.8 10 6.9 .22 .50 .36 .030 1.1 . 30 39 14 .003 .021 .76 66 1.6 .20 .33 )6«66..9 2.7 .28 .O75 .62 O46 2.0 .019 .96 .O75 3.2 20. 33 93 .026 1.1 .008 6.40 .036 1.6 .084 2.9 1.0 13. .32 11. 1.1 9.2 014 55 .012 48 .035 1.3 58 21, 56 &y .020 .72 .0098 ,33 .092 .82 5.3 .065 1.7 .18 .13 2.1 .0086 .30 .030 1.1 .013 48 .066 2.4. 1.6 13. .020 .018 O44 .066 .99 1.6 18. 094 1.15 .065 .070 .016 .017 .92 13. .029 1.08 .013 .56 052 2.1 .56 18. | 58 5.8 021 .76 .008 .37 - ~ 12 4.0 1.1 lo. DO’ ARCHIVES a ee 8 66

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