TABLE 3-5. ISLAND AVERAGE EXPOSURE RATE VALUES FOR !87cs AND §%Co OBTAINED FROM THE FINAL POST CLEANUP IMP DATA AND FROMTHE 1972 AERIAL SURVEY. Average Exposure Rate (;.R/h at 1 m) 137 C5 Aerial* Island (Nov 72) Alice 14 12 Janet+ Kate Lucy Mary Naney Olive Pear]+ 25 1] 6 3.9 6 6.5 12 Ursula Vera 3 2.8 Ruby Sally+ Tilda 2 3.5 4 Wilma Y¥ vonnet+ (Nov 78) 37 61 20 6.8 Irenet Aerial** 42 Belie Clara Daisy 1 966 60Co IMP 53 17 5.9 Aerial* {Nov 72) (Nov 78) IMP 29.3 36 16 17.4 3.3 63 29 13.0 35.8 18.3 4.4 50 19 14.4 22 9.6 5.2 4.8 2.2 Del 10 10,2 3.0) 6.1 3.1 6.8 at 4.0 13 7 7 4 2 4.5 45 2.6 2.4 0.9 1.7 1.8 2 1.7 3.0 3.5 Aerial** 0.6 2.0 2.3 0.9 0.8 4.9 1.9 23 8.6 6.5 a9 3.2 dee 1.8 2.3 2.0 20 12 3 2 2.4 1.4 0.9 0.8 0.9 } 0.5 224 10 15.2 9.2 7.0 3.3 1.8 2.6 1.4 2.2 1.9 7.0 3.8 1.5 0.7 0.3 0.5 0.3 4.] * From NVO-140, Table 9, p. 80 ** Nov. 72 data corrected for radioactive decay to Nov. 78 + Islands where soil was removed during the cleanup TABLE 3-6. AVERAGE |37cs ACTIVITY IN THE TOP 15 em OBTAINED FROM THE IMP DATA (WITH 1/a = 12.5 em) AND THE 1979 FISSION PRODUCT DATA BASE RESULTS. bland Final IMP Results (pCi/g) Fission Product Data Base Results (pCi/g) Alice Belle Clara Daisy Irenet Janet Kate Lucy 44 54 ra 6.6 5.0 15 7.5 9.2 40 6] 22 6.8 6 16 7.8 12 Nancy Olive Pearl 10 7.7 6.0 11 7.9 7.2 Sally Tilda Ursula Vera Wilma 3.0 3.5 1.2 2.6 1.2 3.5 3.2 1.2 3.0 1.3 Mary ~ Ruby 4.7 6 0.9 2.0 *Additional cleanup was performed on this island after the fission product data base samples were obtained. 103