Table VIII Decay Rates of Rongelap Samples Expressed as the Slope ¢ the Log-log Relationship of Activity to Time after March 1, 1954 Fish, invertebrate, and bird tissues Gut or Viscera Li ~1 45 0.30 Giil ~1.28 Miscellaneous @ @ x of bird Plankton number of relationships mean slope Algae Coconut standard deviation: ; coefficient of variation of slope Other land plants soil 2 ~-1.30 0.01 -1.31 0.04