Ss 0021620 SPECIFIC ACTIVITY (FISSIONS/MG) 10'S GEOMETRIC MEAN OF GROUPS OF SINGLE~PARTICLE VALUES GEOMETRIC MEAN OF GROUPS OF SIEVED FRACTIONS CONTAINING FUSEO PARTICLES 19" i9' 10 102 10 4 103 an DOE/NW dm (,) of FLUMBBPB Shaste Fallout With Particle Size 10 5 a 106