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Natural Lead-210 Content of Man
Science, 1960The natural Pb 210 content of ash samples from 18 cadavers has been measured, and an average in vivo content of 0.015 picocurie per gram of wet bone is estimated. The contribution of Pb 210 to the radioactive dose from natural sources is about one-fifth that from internally deposited Ra
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Radium and lead-210 in marine barite
Marine Chemistry, 1977Abstract Measurements of 226Ra and 210Pb in barite samples separated from different depths of a piston core from the eastern equatorial Pacific are reported. 226Ra is enriched in the barite as would be expected from the chemistries of Ra and Ba; the 226 Ra Ba ratio centers around 1.5 · 1014 atoms/mole.
D.V Borole, B.L.K Somayajulu
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Lead-210 and Polonium-210 in Grass
Nature, 1960Evidence is presented that suggests that a large part of the alpha activity observed in certain samples of grass may originate as a decay product of atmospheric radon which is deposited onto the grass by rainfall. Results are reported from measurements of alpha activity of samples of grass and soil collected in the southern part of Great Britain ...
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Validation of the lead-210 dating method
Journal of Radioanalytical Chemistry, 1979210Pb datings of sediments from open marine area, salt marsh area and estuary and of peat from a raised bog have been performed. Different methods of calculation are used. Net accumulation rates in the range of 0.0078–0.44 g·cm−2·year−1 were obtained. The results are in good agreement with those obtained by other methods.
P. Pheiffer Madsen, J. Sørensen
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Storage and Excretion of Lead 210 in Dogs
Archives of Environmental Health: An International Journal, 1962Beagle dogs were exposed to an atmosphere containing radon and its radioactive daughters. Excretion of the resulting radiolead was determined over a long period of time by aralysis of urine and feces for Pb/sup 210/ and analysis of tissues at the end of the experiment.
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Source of Lead-210 and Polonium-210 in Tobacco
Science, 1966Test plants were grown within a chamber enriched with radon-222 in the atmosphere, in tobacco fields with different sources of phosphate-containing fertilizer, and in culture containing lead-210 in the nutrient solution. Harvested leaves were subjected to three curing conditions.
T C, Tso, N, Harley, L T, Alexander
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Determination of the Tropospheric Residence Time of Lead-210
Science, 1962The ratios of bismuth-210 to lead-210 in rain samples were used to calculate tropospheric residence time for lead-210. The value of about 6 days thus obtained agrees closely with the average interval between two rainfalls.
L M, Fry, K K, Menon
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Determination Of Lead-210 And Polonium-210 In Marine Environment
2009Naturally occurring 210 Pb and 210 Po are important tracers used in marine environment studies. In this study, 210 Po and 210 Pb measurements in marine samples (sediment, sea water and biota) were performed using alpha spectrometry. Chemical recoveries are obtained using 209 Po tracer.
Ugur, Aysun, Yener, Gungor
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LEAD-210 from Nuclear Explosions in the Environment
Nuclear Technology, 1978In widely separated locations in both hemispheres, we have found a significant correlation between the increased concentrations of 210Pb in glacier ice and periods of nuclear tests.
Zbigniew Jaworowski +3 more
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Lead-210 and Polonium-210 in Biological Samples from Alaska
Science, 1966The naturally occurring concentrations of lead-210 and polonium-210 in certain biological samples from Alaska are unusually high. The concentration processes are similar to those observed for artificially produced radioactive fallout. Concentrations of these nuclides are greater in Alaskan natives than they are in other United States residents.
T M, Beasley, H E, Palmer
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