Investigation on the development of measurement techniques, the behavior in the environment and the estimation of internal radiation dose by inhalation for some typical atmospheric radionuclides

Radionuclides in surface atmosphere on the earth are 222Rn, 220Rn and their short lived progeny, 7Be, 85Kr, 3H, 14C, 137Cs, 90Sr and so on. In this paper, among them, 222Rn, their short lived progeny (218Po, 214Pb, 214Bi, 214Po), 7Be, 3H, and 90Sr are focused on as follows based on the experimental and observed results, 1. Development of their measurement techniques, 2. Analysis of their variation of atmospheric concentration with time and places, 3. Analysis of their interaction characteristics with surface environment including plants, 4. Estimation of internal radiation doses by inhalation of them. (author). 228 refs