35 Table i8 Sr®* in Marshal‘ese 24-hr Urine Samples, April 1962 No.of Age, subGroup yr jects Exposed Male 1-15 >16 Female 1-15 >15 Total 1-15 >15 Nonexposed Male 1-15 >15 Female 1-15 >1S Total [1-15 Total All All —Sr*, pc/| Ca, mg/l people of retinal burns which might have resulted Sr®, pC/gCa from observation of the fireball at the time of the 3 7 2 8 S$ 15 9,3341.70% 52414 9.0641.11 175426 9.60%2.30 25411 %15.89%2.50 104412 9.444118 4111 12.7041.66 137416 18918 53% 5 426496 165426 284466 113420 !$ 4 — 7 28.60+0 8.88+2.46 —— 10.24+3.07 140+ 0 129%11 —_—— 100%49 204+ 0 66414 —_— 143428 28.600 140+ 0 204+ 0 12.6343.34 11.4541.30 42+ 9 126416 270455 114414 1 >1S V1 1-15 >15 6 26 9.75%2.07 ; 110431 ously, this may be related to fallout exposure of the eyes. There were also several cases of corneal pigmentation which may have been related to fallout exposure, There was no evidence in the exposed 115421 *Standard error of estimate, Routine physical examinations of adults revealed that the slight differences in incidence of various diseases in the exposed group compared with the contro! group could likely be explained by the somewhat greater number of older people in the exposed group. An ophthalmological survey revealed a slight increase in the incidence of pterygia and pingueculae in the exposed group. As reported previ- accident in 1954. A cancer detection survey was done which included, in addition to thorough physical examina- tions, pelvic examinations in mature women with Papanicolaou staining of smears, rectal examinations in adults, and hematological studies for leukemia detection, which included the determina- tion of alkaline phosphatase levels of leukocytes and basophil counts of 4000 white cells. No cases of malignancy or leukemia were detected. Pediatric examinations revealed no marked differences in abnormalities between exposed and unexposed children and no diseases that could be related to radiation effects. Growth and development studies, as previously reported, showed that the boys exposedat an early age (<6 yr and particularly 12 to 18 months) were slightly shorter in stature and weighed slightly less than the unexposed children of comparable age. No such differences were noted in the exposed compared with the unexposed girls. Skeletal age determined by wrist roentgenography showed that both the boys and the girls in the exposed group were slightly retarded, the boys showing the greater deficit. The greatest retardation was noted in 4 boys who had been 16 to 17 months old at exposure. Male children (but not female) born of exposed purents (after the fallout) tended to be smaller in stature at all ages than children of unexposed parents. Table 19 Sr® Analyses of Bone and Crab Samples Original net wt., g Ash — g % Sr*°, dis/min Ol Per total sample Per g ash Ca, % inash Sr°°, pC/gCa Hone Rib Vertebra Crab 878 902 1165 705 1.48 2.60 It 136 209 99 u.4+0.6* 33.8+0.0 12.7 15.1 17.9 14.0 11.1+0.4 13.0+0.3 1462 +5 964 +4 850 +4 1518 +6 *The error term accompanying each result is the Poisson error of counting. 36.6 36.0 50.0 40.0 34.4 49.6 13.7+0.5 16.3%0.4 1317 +4 1086 +4 1113 +5 1378 +5