31 TABLE 4.1 #1 AVERAGE EXTERNAL EXPOSURE AND EXTERNAL DOSE RATES (gamma ray) FOR ISLANDS AFFECTED BY BRAVO FALLOUT a/ Atoll and Reference Island Exposure (gamma) Year bl Dose whole-body) rem/year Oicroroentgens/hour Bikini Atoll Tipton & Heibaum (1981) Eneu Bikini 1978 2.7 35.0 .017 .215 al (1987) Eneu Bikini 1986 --- .018 .160 Atoll & Meibaum (1981) Rongelap 1978 4.5 .028 Arbar 4.1 .025 Busch, Tufa, Borukka,Gabelle 5-9 .031-.055 Eniaetok,Kabelle, Gogan 10-27 .061-.166 Lukuen,Naen,Yugui, Lomuilal 28-43 .172-.264 Singleton Rongelap Tipton et Paretzke (Note Greenhouse berger -Ailingnae Tipton 8) & Xilten(1977) Atoll & ?feibaum(1981) Paretzke (Note 8) Utirik Atoll Tipton & lleibaum(1981) Rongelap 1987 4.1 Rongelap 1977 3.6-4.5 .022-.028 Sifo 1978 1.4 .009 Uogiri Enibuk 1987d/ 1.3 2.2 Utirik 1978 0.8 (7)cdl .025 .008 .013 (1) (1) .005 a/ Measured at 1 meter above ground level, corrected for cosmic Annual, whole-body dose (millirem/year) 6.13 x yR/hour. For the epidermal dose, calculated see Note as 9. equal The average 2.2 rays. bl c1 of 7 locations ranging d/ Corrected for decay back to 1978. from to 4.6 ~R/hour. to