1 Human Beings 55 Cronkite/Bond/Conard Table III. Total thyroid absorbed-dose estimate Table V. Total thyroid absorbed-dose estimate Rongelap Island Occult Cancer ha UA oe Age odules and canat exposure had ‘ groups [3]. ation between yroid and per- legory for all 12.00 Adult Male Adult Female Fourteen- ¥ ear-Old 1.60 2.20 1.70 2.30 Twelve- Year-Old Nine- Year-Old Six- Year-Old One- Year-Old Newborm In Utero. 3rd tri. Jn Utero, 2nd tri. 16.00 20.00 24.00 50.00 2.50 6.80 — 18.06 22.00 26.00 52.00 4.40 8.70 _ Twelve- Year-Old 2.40 2.50 Adult Female Fourteen- Year-Old Twelve- Year-Old ion with can- Nine- Year-Old Six- Year-Old One-Year-Old lism peaksat ted average Newborn and Utirik ‘eases with in Utero, 2nd tri. In Utero, 3rd tri. the persons Average Estimate. Gy Internal Total 10,00 Adult Male - tles, hypothy“action develdose up to an Age Adult Maie Adult Female Fourteen-Year-Old 2n age at expo- Utirik Island Average Estimate. Gy Internal Total 11.00 14.06 13.00 16.00 Maximum Estimate. Gy 40.00 42.00 44.00 56.00 64.00 80.00 96.00 200.00 10.00 27.00 — 46.00 58.00 66.00 82.00 98.00 200.00 12.00 29.00 — 1.50 1.60 Nine-Year-Oid Six- Year-Old One- Year-Old 3.00 3.40 6.70 3.10 3.50 6.80 Newborn In Utero, 3rd tri. In Utero, 2nd tri. 0.48 0.98 2.60 0.59 1.10 2.70 Adult Male Adult Female Fourteen- Year-Old J welve-Year-Old Maximum Estimate. Gy 6.00 6.40 6.10 6.50 8.80 9.60 8.90 9.70 Nine- Year-Old 12.00 Six- Year-Old 14,00 One- Year-Old Newborn 27,00 1.90 12.00 14.00 27.00 2.00 In Utero, 3rd tri. 3.90 4.00 In Utero, 2nd tri. 10.00 10.00 xample, the ith a maxjear-old, the of 200 Gy. ller the thy:¢ burden of ‘ally greater. Table IV. Total thyroid absorbed-dose estimate Sifo Island Average Estimate, Gy Internal Total Age Adult Male Adult Female Fourteen- Year-Old Twelve- Year-Old Nine-¥ ear-Old Six-Year-Old One-Year-Old Newborn In Utero, 3rd tri. In Utero, 2nd tri. Adult Male Adult Female Fourteen- Year-Old Twelve- Year-Old 8300 4001-5000 13.00 14.00 = — _ 4,90 Maximum Estimate. Gy 11.20 12.00 11.60 13.00 16.00 17.60 18.00 19.00 23.00 One- Year-Old Newborn In Utero, 3rd tri. §2.00 _ _ 53.00 —_ — rt iue At WU Le. a4 fod{ “ «4 26.00 20.06 roid size as a function of age. the excretion of '3*] in 24 h urine samples at 17 days. the biological half-life and the measured '*'I in air samples. The major route of radioisotopes into the body was via ingestion. Inhalation was a minor route. Details of the dose reconstruction from all of the factors enumerated above are consid- ered in detail by Lessard eral. [3]. _ 6.10 22.00 In Utero, 2nd tri. | 4.00 4.10 5.30 5.70 6.60 7.60 Nine- Year-Old Six- Year-Old “action of E develop yroidism 2.80 2.90 4.10 4,50 5,40 6,40 Thyroidal dose was based onthe distribution of the 1odine family of radioisotopes in fission products, their decay rates. arrival of fallout, time on the contaminated atolis, thy- 27.00 21.60 Other Radioisotopes Extensive studies were performed on the urine of the exposed persons. tissues of pigs and chickens and newly-laid eggs. Details of animal studies are published [1]. Briefly. autora- diographs of bones were positive and the intensity of radioactivity in eggs diminished with successive eggs. The mean body burdens of the Rongelap groupat 82 days was based on measurements