TABLE B.16 ELEMENTAL ANALYSIS OF DEVICE ENVIRONMENT The sea water analysis is after Sverdrup (Reference 64), except U which was determined from a Bikini lagoon water semple taken just prior to Tewa. The remaining analyses were made at NRDL for Project 2. 6a, Operation Castle (Reference 63), except the Ca and Mg reef values which were estimated from Reference 65. Fraction by weight Observed Operational Element Sea water Surface Coral (Zu and Fi) Reef and Lagoon Floor (Tewa) Avg. Surface Backgrounds and Lagoon (mg/2.6 ft*) Floor (Na) Sea Stations How Island Ca 0. 00040 0. 340 0. 368 0. 354 2.16240. 92 4.15+42.27 Na 0. 01056 Q. 0033 Q. 0069 9.0051 2.4940. 86 4.12+0.97 K Cl 0. 00038 0. 01898 0. 00001 0. 0023 0. 0003 0.0017 0. 00026 0. 0020 0. 4220. 09 1.3120. 39 0.5140.11 2.674 (?) Mg 0. 00127 0. 0260 0. 0110 0. 0185 1.6340. 33 2.50+1.07 Fe 2x 1078 4.2 1075 0. 0002 0. 000121 0. 8620.14 0.65+0.15 U 3x 107° Pb Cu 4x 107° 8x 107% * Not available. * * 1.6 x 1078 . * 1.6 1074 * * 1.6 x 107* . t 0.9220.05 0.30+0.09 t 0.96+0.05 0.26+0.07 t Not detectable. 341 Deleted. Pages 394 RAL 221