Table 2. Selected Cs 137 Data from 1972 Enewetak Survey Surface Island Alice Dose Rate (mr/hr) 042 Activity Density (pCt/a) as a Function of Soil Depth (z in cm) 67 exp (-.011 z), 0 < z < 70 47 exp (-0.67 z), 0 <2 < 8.2 Janet .025 22 exp (-.025 2), 8.2 < z < 75 0.55 exp (-.003) z), #5 < z < 189 ee 5n08970