Temporal distributions of radiostrontium isotopes and radon daughters in rainwater during a thunderstorm

The concentrations of /sup 89/Sr, /sup 90/Sr, /sup 137/Cs, /sup 210/Pb, /sup 212/Po were measured in sequentially sampled rain water during a thunderstorm occurring at Fayetteville, Arkansas, on January 29, 1981. Approximately concordant mean residence times ranging from 43 to 136 days were obtained from the observed ratios of /sup 89/Sr//sup 90/Sr and /sup 210/Pb//sup 210/Po ratio was found to correlate negatively with the /sup 210/Po//sup 210/Pb ratio. The variation of the /sup 212/Pb//sup 210/Pb ratio appeared to have resulted from turbulent mixing of the air masses, and it increased sharply after the rainfall reached a peak value.

[1]  K. Inn,et al.  Atmospheric injections of nuclear debris: Strontium 89 and 90 from Chinese weapons tests , 1982 .

[2]  R. Leifer,et al.  Measurements of the Stratospheric Plume from the Mount St. Helens Eruption: Radioactivity and Chemical Composition , 1981, Science.

[3]  E. Danielsen,et al.  Trajectories of the mount st. Helens eruption plume. , 1981, Science.

[4]  G. Lambert,et al.  Modification of the atmospheric polonium 210 to lead 210 ratio by volcanic emissions , 1979 .

[5]  P. K. Kuroda,et al.  Atmospheric residence times of strontium-90 and lead-210 , 1978 .

[6]  H. E. Moore,et al.  Sources of polonium-210 in atmosphere , 1976 .

[7]  K. Inn,et al.  Temporal variations of 212Pb in thunderstorms , 1976 .

[8]  P. K. Kuroda,et al.  Variation of the ratio of cesium-137 to strontium-90 in the atmosphere. , 1975, Health physics.

[9]  P. K. Kuroda,et al.  Mean residence times of the long‐lived radon daughters in the atmosphere , 1974 .

[10]  H. E. Moore,et al.  222Rn, 210Pb, 210Bi, and 210Po profiles and aerosol residence times versus altitude , 1973 .

[11]  H. E. Moore,et al.  Lead 210, bismuth 210, and polonium 210 in the atmosphere: Accurate ratio measurement and application to aerosol residence time determination , 1972 .

[12]  P. K. Kuroda,et al.  Temporal distributions of radioactivity and 89Sr/90Sr ratios during rainstorms , 1971 .

[13]  P. K. Kuroda,et al.  Global circulation of nuclear debris from the May 14, 1965, nuclear explosion , 1966 .

[14]  P. K. Kuroda,et al.  FALLOUT FROM THE NUCLEAR EXPLOSION OF OCTOBER 16, 1964 , 1966 .

[15]  A. N. Dingle.  Stratospheric Tapping by Intense Convective Storms: Implication for Public Health in the United States , 1965, Science.