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. TotaL VOLUME 24 brs (mJ) Beta ACTIVITY Case No, d/m/24 hrs Age < & yra 2. o-oo ene eee ee eee Bo oa ee ne ene eee nn ee en eee 62. ~--- en n-ne ee ne en eee ee 120 150 155 SS 260 69.2222 ee ee ee ee eee ee 455 80 1a Mean. .--..--------2 4-2 eee eee ee 165 404 23. oe eee ne eee eee ee eee 64.22 ene eee 40 Age > 16 yra 0 804 7_.-....----------------- +e eee ee eee $13 9.22 eee ee we eee eee ee 223 10_.-__---.------ eee eee eee eee eee 1583 549 780 455 47 2460 1670 a7 SE 87-2 eee ee enn ee eee eee 40_- 2 eee ee ee eee eee 750 480 850 570 792 1450 425 780 0 0 Fe BO... oe eee ee nee ee eee eee ne Me eon eee eee ee eee 24 nee eee ee ee 265 550 1900 O04) 85. 22-2 eee eee ee eee eee 255 Of] 1032 58... --- 2-2 een nee ee nee ee 960 330 320 236 1100 68.-...---.----------- eee eee Til. 2.2. ee een eo ne ee eee Mean.-..-...---.-------------------- 439 758 Mean.....--------------.------------ 73-...---.---------- pte 78. ..----.---- eee n ene eee ee 70..-__--.----- eo ee eee eee 80.222. eee nee eee eee 82. _..__--.------- eee ee eee eee eee 495 1080 750 2170 635 2200 §50 B55 2. eee eee eee 438 3220 66.2... 0. 63_--..-- 22-2 -- eee eee enn eee ene 1677 700 810 930 190 280 1705 874 607 Oj] 1180 340 60__...------------ 2 eee eee eee 62._2..---2 eee eee eee eee ee 39... == nee eee eee 650 450 110 440 980 450 980 14... ..--._------.-----.-------- eee eee 18... eee ee wn eee ene 22.0 wee eee eee | wane e eee 47-2 nn nen ee eee G7. -- ew enn nen een eee eee Fe enn en ene eee ee ee TB ena nnn ee eee 1Gna ene en ee ee 634 1700 201 301 BB noone eee nee ee ee ee ees 650 455 810 355 We eee eee eee 4628 eee eee eee eee ee MG. 2-2 eee ne ene nee eee BETA ACTIVITY da/m/24 hrs Oj} 49 ee ee eee ee een eee $2... eee. ce eee eee eee Age 6-15 yrs Tora. VOLUME 24 brs (ml} 1095 580 1985 175 300 200 2010 1450 581 1208 230 965 465 540 670 fr] 52 2038 1353 2140 Values corrected for decay. 4 ‘“‘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 abundantfission products in the situation, the possibility that chronic irradiation effects will occur is quite small... . 78 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 upward is 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.