the eye lens~aose about one fourth the free pom values, the gonadal dose would probably be at most about 1% (Private Communication, O'Brien, HASL). Thus we expect the additional contributions to the gonadal dose from beta rays to be at most about 5 mrem/yr. Gonadal or bone beta-ray doses are thus insignificant compared to gamma-ray contributions. As discussed 4 Sreviously, however, the high free air beta-ray ionization may have elevated the field TLD data adding some conservatigm to the mean exposure rates used e ee ee = te in the model. sece