Geochemistry and the Environment Volume I: The Relation of Selected Trace Elements to Health and Disease (1974) / Chapter Skim
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Pages 56-62
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56 THE RELATION OF SELECTED TRACE ELEMENTS TO HEALTH AND DISEASE Tipton, I
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VII Selenium JAMES E OLDFIELD, Chairman William H
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58 THE RELATION OF SELECTED TRACE ELEMENTS TO HEALTH AND DISEASE for the estimated abundance of selenium in igneous rocks was obtained by dividing 520 by 6,000. This f~gure was used as the crustal abundance of selenium until 1961, when Tureldan and Wedepohl (1961)
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falls, are widespread and form the parent material of many soils. Particularly well known are the western shales of Cretaceous age.
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60 THE RELATION OF SELECTED TRACE ELEMENTS TO HEALTH AND DISEASE mal Nutrition, 1971 )
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the incidence of caries may increase in seleniferous areas. Conversely, Ludwig and Bibby (1969)
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62 THE RELATION OF SELECTED TRACE ELEMENTS TO HEALTH AND DISEASE selenium levels in humans in health and disease. Much more extensive sampling of human material, such as blood, urine, and hair, might be done in attempts to correlate concentrations of selenium with disease incidence.
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