Results 251 to 260 of about 2,351,452 (290)
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Lead-210, polonium-210, and vehicle exhaust pollution
Lancet, The, 1995D L, Henshaw, P A, Keitch, P R, James
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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 in the circumpolar South Atlantic
Deep Sea Research Part A. Oceanographic Research Papers, 1990^(210)Pb activity in circumpolar waters of the South Atlantic is characterized by a sharply defined maximum at intermediate to shallow depths that is strongly correlated with the oxygen minimum. This feature, present throughout the Southern Ocean, is most likely locally maintained rather than advected from elsewhere.
Farley, K. A., Turekian, K. K.
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The ratio of lead-210 to polonium-210 in U.K. diet
Science of The Total Environment, 1986The levels of the natural radionuclides, 210Pb and 210Po, in U.K. diet have been measured previously. However, in the earlier measurements, the samples were sufficiently aged for 210Pb and 210Po to have attained secular equilibrium. In order to determine the extent of disequilibrium between these radionuclides in fresh food, measurements have been made
J L, Smith-Briggs +2 more
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Correlation of Lead-210 with Strontium-90 in Human Bones
Nature, 1966THE radioactive gas radon-222, produced by the decay of radium-226, diffuses from the ground and is transported by atmospheric turbulence far from its origin through the troposphere and into the stratosphere1. The radioactive decay of radon-222 and its short-lived descendants produces measurable quantities of lead-210 in the atmosphere1–3.
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Polonium-210 and lead-210 in the marine environment
Geochimica Et Cosmochimica Acta, 1970Abstract A method is outlined for the determination of lead-210 and polonium-210 in sea water by solvent extraction, followed by electrodeposition and alpha counting. Data are given for the lead-210 and polonium-210 content of twenty nine samples collected at a depth of 20 m in the sea around the Cape of Good Hope during March 1969.
L.V. Shannon, R.D. Cherry, M.J. Orren
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The study of lead-210 in the marine environment
Journal of Oceanography, 1977This article summarizes the author's work on210Pb and210Po distributions in the marine environment for which the Okada Prize of the Oceanographical Society of Japan was awarded. In this review, the work of other investigators and the studies now going on are also included.
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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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Microdistribution of Lead-210 in the Rabbit’s Osseous Tissue
1985The kinetics of lead-210 (administered intravenously as nitrate) microdistribution in the shaft of tibia and femur of male Chinchilla-like rabbits, aged 12 months was investigated. Lead-210 concentration in growing parts of periosteum and endosteum and in compact bone was measured by autoradiographic method.
J. Doniec, M. Trzcinka-Ochocka
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Lead-210 chronology of the Scandinavian SWAP sites
Philosophical Transactions of the Royal Society of London. B, Biological Sciences, 1990Abstract In the Surface Water Acidification Project (SWAP) sediment profiles from five Scandinavian sites were analysed for 210Pb by using refined isotope dilution alpha spectrometry. The 210Pb parameters of these lakes were very similar to those obtained for protected forest lakes with no land-use activities.
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