the plankton samples taken in the water of the lagoon had ratios af .01, two near the edge had ratios of .M2 and the sample at P-27, which is directly in the flow of open sea water through which you pass into the Lagoon, had a ratio of 3, The plankton samples analyzed thus far also reflect the levels of activity in the water mass in which the plankton were collected. The concentration factors calculated on the basis of amounts of pu239,240 in the water and in a corresponding weight of plankton were remarkably uniform. The concentration factors ranged from 2.4 x in? to Plankton samnles analyzed thus far averaged 3 x 104 x These concentration factors appear to he high by approximately a factor of 19 over those generally reported in the literature. 9005932 os ef & —— 3.6 x 104 and the average concentration factor for the the concentration of the radionuclides in the water. c