113 Radiation doses and cancer risks in the Marshall Islands @ S. L. Simon ET AL. Table 5. Estimated total '°’Cs deposition (Bq m~’), external dose (mGy), and internal dose (mGy, sum of acute + chronic) to red bone marrow (RBM), thyroid, stomach, and colon of representative adults of all population groups. Values in table are best estimates and 90% uncertainty range (5%—95%) as discussedin text. All entries are rounded to two significant digits. Community/Atoll by geographic grouping Total BICg, kBq m~” (5%-95%) Southern latitude group Ailinglaplap 1.5 (0.73—2.8) Arno 2.2 (1.1-3.8) Aur 2.0 (1.2—3.1) Ebon 1.4 (0.95—2.0) Erikub* 2.4 (1.7-3.4) Jabal* 1.7 (0.81-3.0) Jaluit 1.5 (0.80—2.5) Kili Island® 1.5 (0.89—2.3) Knox 1.6 (0.95-2.5) Lae 2.0 (0.76—4.5) Lib Island 2.4 (0.97—4.9) Majuro 2.0 (1.4-2.9) Maloelap 2.4 (1.43.8) Mili 1.6 (0.95—2.5) Namorik 1.3 (0.75—2.1) Namu 2.0 (0.82—4.1) Ujae 1.6 (0.53-3.7) Rongelap control 2.8 (1.7—4.5) group‘ Mid-latitude group Ailuk Jemo Island* Kwajalein south Kwajalein north* Likiep Mejit Island Ujelang" Wotho Wotje 7.5 5.2 3.6 4.3 5.5 6.6 4.0 4.0 5.2 Utrik group Utrik® Taka* 29 (15-50) 20 (11-33) (3.8-14) (2.5-9.5) (2.2—5.5) (1.9-8.1) (2.5-11) (3.3-12) (1.8-7.8) (2.4-6.4) (2.6-9.4) External dose, Internal dose to Internal dose to 6.9 10 9.9 5.3 0.80 1.2 1.1 0.74 20 25 25 12 mGy (5%-95%) 6.6 11 10 12 9.8 12 7 5.5 11 8.6 22 (1.8-18) (2.7—28) (2.6—26) (1.4-14) — — (1.8-18) (2.8—28) — (2.7—27) (3.2—33) (2.6—26) (3.3-33) (1.9-19) (1.5-15) (2.8—28) (2.3—23) (15-31) RBM, mGy (5%—-95%) 0.78 1.1 1.1 1.3 1.1 1.3 0.84 0.68 1.1 0.87 21 (0.051-3.8) (0.07—5.2) (0.068-5.1) (0.047-3.5) — — (0.050-3.7) (0.071-5.3) — (0.070-5.2) (0.081-6.0) (0.069-5.1) (0.083-6.1) (0.054-4.0) (0.043-3.2) (0.068-5.1) (0.055-4.1) (1.3-97) thyroid, mGy (5%-95%) 14 27 28 34 23 32 17 12 29 22 53 (1.3-93) (1.6-120) (1.6—120) (0.76-56) — — (0.91-68) (1.7—130) — (1.8-130) (2.2-160) (1.5-110) (2.0-150) (1.1-80) (0.76—-56) (1.8-140) (1.4100) (3.4-250) Internal dose to stomach wall, mGy (5 %-95%) 0.84 1.1 1.1 0.67 0.74 1.2 1.2 1.4 1.1 1.4 0.82 0.63 1.2 0.92 17 (0.054—4.0) (0.07—5.2) (0.070-5.2) (0.042—3.2) — — (0.047-3.5) (0.074-5.5) — (0.074-5.5) (0.088-6.6) (0.068-5.1) (0.086-6.4) (0.052—3.9) (0.040—3.0) (0.074-5.5) (0.058—4.3) (1.1-82) Internal dose to colon, mGy (5%—-95%) 4.3 5.6 5.7 2.7 3.3 6.1 6.2 7.3 5.4 7.1 3.9 2.7 6.1 4.9 27 (0.27—20) (0.36—26) (0.36—-27) (0.17-13) — — (0.21-15) (0.39-29) — (0.39—29) (0.4534) (0.34—25) (0.45-33) (0.25—18) (0.17-13) (0.39-29) (0.31-23) (1.7-129) 59 (16-160) — 22 (5.858) — 39 (10-100) 49 (13-130) 25 (6.6—66) 23 (6.2—62) 31 (8.2-82) 5.8 (0.37-27) — 1.9 (0.12—9.2) — 3.5 (0.22-16) 4.5 (0.29-21) 2.2 (0.14-10) 2.2 (0.14-10) 2.8 (0.18-13) 160 (10-760) — 67 (4.3-320) — 110 (7.0-520) 120 (7.7-580) 86 (5.4-400) 77 (4.9-360) 80 (5.1-380) 7.1 (0.45-33) — 2.4 (0.15-11) — 4.3 (0.27-20) 5.3 (0.34—25) 3.0 (0.19-14) 2.8 (0.18-13) 3.1 (0.20-15) 44 (2.8-210) — 14 (0.88-65) — 25 (1.6-120) 31 (2.0-150) 18 (1.1-84) 15 (0.96-71) 17 (1.1-82) 130 (53-260) — 35 (3.8-138) — 760 (83-3,000) — 41 (4.4-160) — 210 (23-830) — Northern latitude group Ailinginae’ 54 (24-110) 470 (125-1,300) 25 (1.6-120) 2,600 (160—-1,200) 232 (15-1,100) 940 (60—4,500) Bikar* 68 (26-150) — — — — — __ _ — — — Rongelap north* 560 (180-1,300) Rongelap Island 180 (100-280) 1,600 (1,100-2,200) 42 (8.4-130) 7,600 (1,500-—23,000) 550 (110-1,700) 2,800 (560-8,500) community® Rongerik" Taongi® 120 (45-250) 1.2 (4.0-2.8) 940 (390-1,900) — 11 (0.71-52) 3,900 (250-19,000) — — 200 (13-940) — 1,200 (775,700) —_ “No dose entry indicates an atoll or island that was not traditionally inhabited. > Deposition pertains to the total '°’Cs deposited on Kili Island from all tests. Doses pertain to Bikini community. © Rongelap control group refers to 117 Rongelap community members who were not on Rongelap Island at the time of the Bravo test and were assumed in this work to have been on Majuro at that time. Deposition pertains to the sum ofthe '°’Cs deposited on Majuro in 1954 and 1956, and on Rongelap Island for the other years. Doses account for the entire residence history of this group (see Table 3). “ Deposition pertains to the total '°’Cs deposited on Ujelang Atoll from all tests. Doses pertain to Enewetak community. * Deposition pertains to the total '"’Cs deposited on Utrik Atoll from all tests. Doses pertain to Utrik community. "Deposition pertains to the total '°’Cs deposited on Sifo Island, Ailinginae Atoll. Doses, however, pertain solely to 18 members of Rongelap community exposed to Bravo fallout on Sifo Island, but exposed to fallout from all other tests at the same locations as the Rongelap Island community (see Table 3 for relocation history). £ Deposition pertains to the total '°’Cs deposited on Rongelap Island from all tests. Doses, however, account for evacuations and relocations of the community (see Table 3 for relocation history). " Deposition pertains to the total '°’Cs deposited on Rongerik Atoll. Doses pertain only to the acute exposure from Bravo fallout received by U.S. military weather observers.