Table 1. 239°240py Concentration and MICE Collection Efficiency of Ocean and Enewetak Lagoon Water, fCi/liter (0%) Sample Station Date Volume (liter) PF 233%240puq on Cartridge B 239°240pu in Filtrate MICE RC £8 (b) Ocean } 37-N 123°W ° 0 10 N 165 E Fl F2 F2A Ol Jan 77 1275 545 410 681 0.030(12) 0.058(7) 0.046(23) 0.046(15) Lagoon Enewetak } 110°N 162°E E4 E8 £9 ELO Ell El2 El El Apr 76 681 1003 1048 1003 1003 1052 1103 2250 -1.66(8) 2.0(15) 14.3(5) 5.6(3) 1.6(3) 71(4) 21(4) Nov 77 0.036(13) 0.023 (18) 0.028(15) 0.069(10) -44(8) . 20(3) -20(3) .17(3) -80(1) -61(3) -9(5) 0.5(5) (a) % Collection Efficiency S.D.) (a) a-Byay| Ayre) (a) (c) (d) (e) 0.167(18) 0.142(19) 0.167(15) Q.317(12) 0.140(24) 0.142(19) 0.154(19) 0.33(45) 69(12) 80(15) 79(13) 68 (8) 82(25) 80(21) 85(21) 65 (26) 13 0 6 -3 2.28(9) 15.0(5) 12.8(4) 22.5(4) 13.7(2) 19.8(7) 46(6) 42 (6) 2.34(7) 16.0(6) 13.1(6) 25.8(4) 18.5(3) 18.2(6) 40(3) 40(3) 73(7) 69(3) 52(2) 95(4) 71(1) 84 (6) 74(4) 48(3) 71(8) 66(5) 50(4) 83(5) 53(2) 92 (8) 85 (6) 50 (3) -3 3 -2 -8 -18 8 il 2 Average 72(13) 72(15) (a) The value in parentheses is the 1 sigma counting error expressed as percent in the concentration measurement (0%). deviation (S.D.)} is shown for the collection efficiency. (b) Aliquot determined by radiochemical analysis. Actual (c) Calculated collection efficiency of MICE samples using Equation 1. (d) Measured collection efficiency of MICE samples calculated from the first MnOg cartridge (A) and the plutonium concentration in the filtrate determined by radiochemistry (RC). (e) A= (d) - (c)