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| Nature 216, 352 - 353 (28 October 1967); doi:10.1038/216352a0 |
|
Polonium-210 in Marine Plankton
L. V. SHANNON & R. D. CHERRY
Division of Sea Fisheries, Sea Point, South Africa.
Department of Physics, University of Cape Town.
THE occurrence of polonium-210 and its precursor lead-210 in the natural radiation environment has been studied increasingly during the last decade. Radon emanating from materials in the Earth's crust introduces lead-210 into the atmosphere and there is then a natural fallout of lead-210 and its daughters. These nuclides are then incorporated into natural samples in the hydrosphere and lithosphere. Papers by Burton and Stewart1, Patterson and Lockhart2 and Peirson et al. 3 provide data for lead-210 and polonium-210 in air and in rainwater. Hill4 has discussed in detail the concentrations of polonium-210 and lead-210 in foodstuffs, tobaccos and human tissues from various environments, and additional data have been provided by Hill5, Holtzmami6, Little and McGandy7 and others.
- Burton, W. M. , and Stewart, N. G. , Nature, 186, 584 (1960). | Article | PubMed | ISI | ChemPort |
- Patterson, R. L. , and Lockhart, L. B. , in The Natural Radiation Environment (edit. by Adams, J. A. S., and Lowder, W. M.), 383 (University of Chicago Press, 1964).
- Peirson, D. H. , Cambray, R. S. , and Spicer, G. S. , Tellus, 18, 427 (1966). | ISI | ChemPort |
- Hill, C. R. , Nature, 208, 423 (1965). | Article | PubMed | ISI | ChemPort |
- Hill, C. R. , Science, 152, 1261 (1966). | PubMed | ISI | ChemPort |
- Holtzmann, R. B. , Nature, 210, 1094 (1966). | Article | PubMed | ISI | ChemPort |
- Little, J. B. , and McGandy, R. B. , Nature, 211, 842 (1966). | Article | PubMed | ISI | ChemPort |
- Rama , Koide, M. , and Goldberg, E. D. , Science, 134, 98 (1961). | ISI | ChemPort |
- Goldberg, E. D. , in Radioactive Dating, 121 (International Atomic Energy Agency, Vienna, 1963).
- Cherry, R. D. , Nature, 203, 139 (1964). | Article | ISI |
- Beasley, M. , and Palmer, H. E. , Science, 152, 1062 (1966). | PubMed | ISI |
- Shannon, L. V. , Invest. Rep. Div. Sea Fish. S. Afr., 69 (in the press).
- Shannon, L. V. , Invest. Rep. Div. Sea Fish. S. Afr., 58, 1 (1966).
© 1967 Nature Publishing Group
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