Biographical Memoirs Volume 74 (1998) / Chapter Skim
Currently Skimming:
Clair Cameron Patterson
Clair Cameron Patterson
Pages 266-287
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While subsequently applying the methodology to ocean sediments, he came to the conclusion that the input of leac! into the oceans was much greater than the removal of leac!
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became acquainted! with mass spectrometers.
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by cleveloping new mass spectrometric techniques, while I was to measure uranium by alpha counting. (I finally also enclec!
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Alpha counting was user! as a measure of the uranium en c!
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Harrison Brown to plan a cooperative study to measure the branching ratio by determining the radiogenic 40Ar en c! 40Ca in a lOO-millionyear-old KCl crystal (sylvite)
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mass spectrometric techniques, en c! a better unclerstancling of the physical processes taking place in the early solar system and Earth formation, but these have not substantially changer!
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with isotope ratios that were unlike any isotopic compositions that have ever been fount! in terrestrial rocks.
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concentration in blooc! for many Americans to be over 100 times that of the natural level, and within about a factor of two of the accepted limit for symptoms of lead poisoning to occur.
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My efforts have been directed to this matter for the greater part of a year with reluctance and to the detriment of research in geochemistry. In the end they have been greeted with derisive and scornful insults from toxicologists, sanitary engineers and public health officials because their traditional views are challenged.
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a report entitled "Airborne Lead in Perspective" to guide the Envi
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Patterson macle three recommenciations for improvements that seem to have been taken seriously.~3 These were (~) to use Bureau of Stanciarcis mass spectrometers to permit mass spectrometric leac!
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A few months later Patterson wrote that he believer! the analytical work being clone at the headquarters EPA laboratory met his stanciarcis.~4 In 1980 Dorothy M
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consiclerable meclical research to stucly the effects of leac! at below the toxic poisoning level on the human learning ability.
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Thus he says,~9 "Most persons cannot see the ills of a culture constructor! by 10,000 years of perverted utilitarian rationalizations because they perceive only its material technological forms through the eyes of a cliseasec!
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by his wife Lorna Jean McCleary Patterson, who resicles at The Sea Ranch, California, en c! children Cameroon Clair Patterson, Claire Mai Keister, Charles Warner Patterson, en c!
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5. Letter of Herbert Stockinger dated October 20,1965, to Katharine Boucot, the editor who handled Patterson's paper.
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Barrett. Deficits in psychologic and classroom performance of children with elevated dentine lead levels.
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Chow. The occurrence and significance of lead isotopes in pelagic sediments.
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1976 With others. Comparison determinations of lead by investigators analyzing individual samples of seawater in both their home laboratory and in an isotope dilution standardization laboratory.
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Lead concentration changes in Antarctic ice during the Wisconsin Holocene transition. Nature 323:222-25.
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