~10- Survey meter readings Table 2 gives survey meter readings at nine islands, of which Edna, adjacent to the site of the Nectar detonation (Mike crater), was highest, with 600 mr/hr on June 7, 1954. Figure 3 shows the series of readings at Belle with meter one inch from the ground, the shield both open and closed. BELLE — SURVEY METER READINGS Slopes of the two regression lines, -1.14 and -1.06 (Table 1) do not differ significantly. The slope is approximately that of mixed fission product decay, assuming there was a slight leveling influence due to detonations prior © to 1954. AVS AFTER 10 MAY 14, 1954 Fig. 3 Table 2. Survey meter readings in milliroentgens per hour at one inch from the ground on various islanda of Eniwetok Atoll in 1954-65, Values above 20, with Junc, others with Geiger counter. Shield open except at Belle, first colwm, for which, shield closed. Date Alice Belle 5/15/54 16 18 19 22 26 6/1/54 2 3 4 7 10 11 1a 22 7/1/54 14 18 20 8/6/s4 1? 0/7/64 7/64 Daisy Edna Janet Olive Vera Henry Leroy 378 200 130 800 85 270 220 30 680 30 80 29 90 27 70 22 70 20 60 19 50 18 35 12 & 10 40 6 18 5 11 7 60 600 400 14 13 ll 180 2 2 20 «10 le +18 . . re A 4 “tay