46 RADIOACTIVE CONTAMINATION OF AREAS IN THE PACIFIC OCEAN FROM NUCLEAR TESTS Table 45—Gross Beta Activity in Urine of Group I on 46th Day Post Detonation CasE No. Tora. VOLUME 24 brs (ml) BEta ACTIVITY d/m/24 hrs Age << oyre Ben ne ce ee ec eee ee meen cemee enna eee ee ne B12 W- nee enn eee ne nee ene BB nw one ewe nnn ne nn eee nn een eee $8... 02-2 oe ee en ee ee eee eee 64.21 nnn een een eee ee eee 120 150 155 40 260 80 F12 BO4 213 223 Oj 385 69... eee eee 455 801 165 mel) M4 , Mean.......---...-----.--------- eee - Age 6-15 pra 0. nen ee eee eee eee 2h wee ee eee eee eee Bonne ee eee eee eee 265 550 650 B56. +n ee eee eee eee eee eee 1900 OF} 1032 Casz No. Age > 16 yrs 4.0 8 eee eee eee ee een ene eee 7.28 nen ee eee ene eee eee 0_.-.-.----- ee ee eee eee ee 10__...---- 22. Me... eee eee ee 13.-..-.---.-------------------- eee ee TOTAL VOLUME 24 brs (ml) Beta ACTIVITY d/m/24 brs 455 810 355 980 450 340 634 1700 201 549 1583 1677 M4.....------- 2. eee eee eee 780 2460 1S_ ooo ee ee ee nn ene ee neem 22.22. nee eee eee ee B02 ne ee ene eee eee eee ee W__ ee eee eee nee 87 Lo en een ne eee eee 40.02 2-2 46. ne ee ee eee eee eee een ene 49 ww nnn ce ee nn cee en ene cen eee eine Bo ee eee enn ee nnn eee eee eee eee BBL cee eee eee ee eee nce e ene BBween eee eee een eee BT Ln ee eee ere e rete e ce eee ener n eee nen BB. we eee eee nee ne ene 60... 2, 62.00 63....-.--...-....---2----- eee eee 455 47 060 750 430 556 330 425 780 320 700 550 750 810 980 1676 7 438 570 702 1450 495 0 0 1080 $220 1005 2170 580 1985 255 O 635 2260 BB. 8 eee ene ee eee BB. on ee eee G7. one nee ee ee eee eee ne eee 67. one ee eee eee ee Teh eee nn ne eee ene 15. nee ee ne eee ee ee eee eee eee re 190 280 650 450 110 440 080 236) W100 1705 674 a ON) 1180 68._....---.2--------------- 2-2 ---- eee eee TEL owe ee eee eee eee 78... -..-- 2-2 eee eee eee eee 7Bow ee ne eee eee |: ee BOL nee eee eee eee eee 82_.2.-22.2 ee eee 300 200 230 965 465 540 670 2010 3450 Mean... 2-2-2 e- eee eee eee 438 758 Mean _....-..----------------.------- 581 662 855 715 9 52 2038 1353 2140 1208 Values corrected for decay, “Analysis of the internal contamination indicates that the dose to the tissue of the body was near, but, with exception of the dose to the thyroid, did not exceed the maximum permissible dose levels. The activity fixed in the body decreased rapidly as a function of time. The contribution of the effects of internal contamination to the total radiation response observed appears to be small on the basis of the estimated body burden of the radio-elements. In view of the short half-life of the most abundant fission products in the situation, the possibility that chronic irradiation effects will occur is quite small... . ’"8 These data suggest a low relative hazard from internally deposited radioisotopes since the values for maximum permissible concen- trations are based on the concept that these levels will be maintained indefinitely. The report stated, ‘The total white count increases duringthefirst 2 or more days and then decreases below normal levels. —The count becomes stabilized during the 7th or 8th week at low levels, and minimum counts probably occur at this time. A definite trend upwardis apparent in the 9th or 10th week; however complete recovery may require several months or more. “The neutrophile count parallels the total | white blood cell count. Complete return to normalvalues does not occur for several months or more. Theinitial rise in total white count is due to a neutrophilic leukocytosis.