| i TABLE 2 BIKINI AND ENEU ISLANDS: CESIUM-137 IN SOIL (1987)° b SPECIFIC ACTIVITY (pCi’g) AT SPECIFIED DEPTHS — ISLAND NO. OF SITES 0-40 em® 0-10 cm (ROOTING (SURFACE ZONE) 10-15 om 45-25 om 25-40 cm 40-60 cm 60-100 cm ZONE} BIKINI MEDIAN (MEAN)” DISTRIBUTED® MEAN 145-157 25 (37.9) 55 (74) 27 (43) 10 (29} 4.2(18} 1 (6.6) 145-157 28.6 55 36 23.4 9.7 3.0 ENEU MEDIAN (MEAN)? DISTRIBUTED” MEAN 126-133 1.93 (2.88) 3.6 (6.1) 2.4 (3.4) 1.6 (2.4) 88 (1.5) 25 (1.149 126-133 2.31 a4 2.6 2.1 1.0 0.4 1987 is the earliest data of resettlement. Robison et. al. (6), based on soil dry weight, which is about 80 percent of fresh weight. Based on least squares fit of Figure 4 and Equation 2, Section 2.2. The values at other depths are the observed values. The data for the entire island were pooled at each depth. For the distributed mean, Eneu and Bikini were each divided into 6 areas, the median for each area (at each cepth) determined, and the island mean of the 6 medians calculated. 85 sites. 63 sites. I00004b 50