Fig 25 10* Rongelap External Exposure Rate History Post Cactus 48 Q04 We 156! 004 W+1945 O05 He 105 Yellowood + 100 hours Fae -THOAAMOOBE mo0.4 HetZT3 Hickory + 100 hours io. 14 12 881 Q 0.306 “1.354 2.03 “1.14 3.0) “1.29 (4,? 1.3 TOTAL NATURAL BACKGROUNDS. 104 io? HOURS POST CACTUS 197 July 6, 2072 SLOPE 0.0076 He 160848 September 15, 1976 pf = < O.7F w+14§ 1.2H+ 8? Cactus ¢ 1O0 hours —qiime7T3 Char 25 Ho 24l ee ee ONS 49 OT sates - =— ---—--- Cee wil ° © 0.02 eince July 1/957 r 9, EXPOSURE RATE, mane! Ph AREA EXPOSURE, ma 130 aa 28