Results 231 to 240 of about 266,971 (256)

Lead-210 and Polonium-210 in Tissues of Cigarette Smokers

Journal of Occupational and Environmental Medicine, 1966
Concentrations of lead-210 and polonium-210 in rib bones taken from 13 cigarette smokers were about twice those in six nonsmokers, the polonium-210 being close to radioactive equilibrium with the lead-210. In alveolar lung tissue the concentration of lead-210 in smokers was about twice that in nonsmokers.
R B, Holtzman, F H, Ilcewicz
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Lead-210 chronology of the Scandinavian SWAP sites

Philosophical Transactions of the Royal Society of London. B, Biological Sciences, 1990
In the Surface Water Acidification Project (SWAP) sediment profiles from five Scandinavian sites were analysed for 210 Pb by using refined isotope dilution alpha spectrometry. The 210 Pb parameters of these lakes were very similar to those obtained for protected forest lakes with no land-use ...
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Polonium-210 and lead-210 in the marine environment

Geochimica et Cosmochimica Acta, 1970
Abstract 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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Atmospheric residence times of strontium-90 and lead-210

Journal of Radioanalytical Chemistry, 1978
The concentrations of89Sr,90Sr,210Pb and210Po were measured in a series of rain samples collected at Fayetteville (36°N, 94°W), Arkansas, after the 14th Chinese test of March 18, 1972, which occurred at Lop Nor (40°N, 90°E), China. Approximately concordant tropospheric residence times were obtained from the89Sr/90Sr and210Po/210Pb ratios in rain ...
P. K. Kuroda, P. Y. Daniel, A. Nevissi, J. N. Beck, J. L. Meason   +4 more
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Accuracies in Po-210 determination for lead-210 dating

Hydrobiologia, 1991
Various laboratory techniques have been utilized worldwide for measuring lead-210 in sub-recent deposits through its grand-daughter product polonium-210. Isotope dilution alpha spectrometry proved a suitable tool for absolute determination of lead-210 for the dating of aquatic deposits.
F. El-Daoushy, K. Olsson, R. Garcia-Tenorio   +2 more
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Correlation of Lead-210 with Strontium-90 in Human Bones

Nature, 1966
THE 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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The Autoradiographic Method for Lead-210 Quantitative Determination

1985
The method was developed for determination of lead-210 concentration on endosteal and periosteal surfaces and diffuse activity in the compact bone (tibia and femur from rabbit). A solid state nuclear track detector (cellulose acetate) was used for quantitative autoradiography of alpha particles originating from polonium-210, the daughter of lead-210 ...
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Microdistribution of Lead-210 in the Rabbit’s Osseous Tissue

1985
The 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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Determination of lead-210 in water

Open-File Report, 1966
J.O. Johnson, K.W. Edwards
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Direct Radiochemical Determination of Lead-210 in Bone

Analytical Chemistry, 1965
H G, Petrow, A, Cover
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