i] Table 7. Chromosome Aberrations cae | ace Wal (ARIES USISgtPegi Riae | Ouen RetietSina | | | T-8 399, 37) K-1 K-2 32 35, K—-5 K- 6 33) 36! K-10 K-11 35 | 33 K—+ K-9 35 | 32' 2300 200 WO 20 200 200 2 200 2 200 200 oO: [6 %% 4.0 20 ° £40 335 , $5. 25 20 . 90 30 4.5 | 29 200 45° K-16 30) 200 55 Total 38 | | 200 2,500 2.0 3.5 20 i 05 o 35 ! 35) 05 05 0 30S 70 | | 20 0.5 3933; S| | | 0 0 0 05 0 0 0 | 0 0 o 0.5 0.3 0 1.0 0.5 a 0 0.5 2.0 70 0 0 0.5 0 i ° 0.5 «450 300° 10 20 | 9 15 30 6.0 45! ! wus) 0 : . . % ys'gny Was) K-12 K-i3 al| Chromatid: ‘Examined | | Convol* 28~53 T~3 : | | | ities 25 | 6.0 05 os | | 40 63 15 2.0 20 15 20 1 | | | aows0) 05 2.0 Cells with . Total | | 5.5 5.3 | 0 0! O5 | 3500 50 | los 0 | 15 | OB o | 13 | 40 40 6.5 6.0 70 50 1 | 5.5 65 | 0 _c0~30) 40» 6.5 65 | ities 9% § | 35 53) | 4.5 6.5 70 5.0 3.5 35 5.0 5.1 * Consisting of eleven healthy male, ** Not being included in ‘* Tutal chromosome abnormalities” and “Cells with chromosome abnormalities ”. *™ A chromosome or chromosomes being missing from or additional to one or more of the seven chromosome groups: the distribution in the remaing groups being normal. Luke’s Hospital). was obtained. BA{R: No abnormal value urines from the exposed people wasdistributed between 23.3406 and 129.642.3 pCi/24 Cases T-8, K-2 and K-12 were meas- hrs. 1) '’Cs contents were 79 ured. Data were +9¢3, ~226, and —29, pCi;24 hrs. urine. "Cs content from normal urine samples was distributed between 537.8+1.7 and 191.142.6 '"E uptake, PBI conversion pCi/24 hrs. and the mean '’’Cs contents were rate and body counting and urine analyses, ’*’Cs content of the exposed people is not different from that '’Cs Whole Body Counting Gammaspectrometric body counting on On the other hand, the 12 pCi,24 hrs. Considering the results of whole Internal Exposure a. the mean respectively. As Case K-2 was suspected of a slight enlargement of thyroid, Triosorb tests were added. No abnormal result was obtained. H. and the analyses by b. of the present normal Japanese. °Sr+7"¥ whole **Sr analyses were done on the pooled urine 13 exposed people samples collected from 3-5 exposed persons. indicated nosignificant increase of '’Cs. No As the control, 3 normal samples were analys- difference was recognized between the curves from the exposed persons and those from ed. No significant increase was found on the samples from the exposed persons. the controls. 2) Radiochemical Analyses of Urine '"Cs analyses were carried out on 24-hour urine samples from 10 exposed people and I+ normal persons. The '’Cs content of Summary Medical cxaminations were carried out from middie of January to middle of May 1964 on 18 persons exposed to fall-out in the middle Pacific