1. Estimates of seasonal variations of 222Rn from different origins by using the correlation between 222Rn and 212Pb concentrations in air;Hattori,1997
2. Relation between diurnal variation of atmospheric radon daughter concentration and height of inversion layer;Nishikawa,1990
3. Influence of short-lived radon-222 daughters present in atmosphere on natural environmental gamma-radiation field;Kataoka;J. Nucl. Sci. Technol.,1982
4. 222Rn concentration in outdoor air and some meteorological elements at different heights of the ground level above sea level;Kataoka,1990
5. Variation of 222Rn concentration in outdoor air due to variation of the atmospheric boundary layer;Kataoka;Radiat. Prot. Dosim.,1992