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  • 1
    Call number: PIK N 454-96-0251
    Type of Medium: Monograph available for loan
    Pages: X, 368 S.
    ISBN: 3540609717
    Series Statement: Veröffentlichungen der Akademie für Technikfolgenabschätzung in Baden-Württemberg
    Branch Library: PIK Library
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  • 2
    ISSN: 1573-5036
    Keywords: Brassica napus L.napus ; cadmium ; heavy metals ; Hordeum vulgare L. ; lead ; local distribution ; Sinaspis alba L. ; soil plant transfer ; temporal distribution ; thallium ; Triticum aestivum L. ; Zea mays L
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Notes: Abstract Five plant species were cultivated on a soil from the Neckar alluvial fan near Heidelberg (FRG) polluted by the emissions of a cement plant. Thallium, cadmium and lead concentrations in seedlings and mature plants were determined by atomic absorption analysis. AdditionallyBrassica napus L.napus was grown on soils containing 5 different concentrations of heavy metals, achieved by mixing two similar soils, from the same area but with different metal concentrations. Thallium and cadmium were shown to be taken up by roots whilst lead which was also absorbed, was deposited mainly on the plant surface. However during cultivation in the winter months, a remarkable deposit of lead via the roots was found. Thallium in the soil from a anthrorogen source was more available to plants than thallium of geological origin. During the lifetime of a plant concentrations of thallium and cadmium were always highest in the seedling. The decrease in metal concentration with maturity depended on the plant species and the element, but was not a function of the metal concentration in the soil.
    Type of Medium: Electronic Resource
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  • 3
    ISSN: 1573-5036
    Keywords: Brassica napus napus ; Chemical extraction ; Heavy metals ; Soil-plant-transfer ; Thallium ; Boden ; Boden-Pflanzen-Transfer ; Brassica napus napus ; Chemische Extrahierbarkeit ; Schwermetalle ; Thallium
    Source: Springer Online Journal Archives 1860-2000
    Topics: Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Description / Table of Contents: Zusammenfassung Auf zwei unterschiedlich stark durch Thallium belasteten Böden des Neckarschuttkegels im Raum Heidelberg (BRD) wurde durch Anbau von Winterraps (Brassica napus L. var. napus) eine signifikante Abnahme der Thalliumgehalte beobachtet. Die Pflanzen reicherten das Metall auf dem belasteten Boden in höherem Maße an als auf dem unbelasteten. Sequenzielle Extraktionen zeigten, daß große Anteile des Thalliums in dem durch ein Zementwerk belastenten Boden leicht adsorptiv gebunden waren. Ebenso wie im Totalaufschluß der Böden konnte in jeder Extraktionsphase der Thalliumverlust durch Rapsanbau ermittelt werden. Ein Vergleich der Extrahierbarkeit mit der tatsächlichen Entnahme erweist das Extraktionsverfahren als geeignet, die Pflanzenverfügbarkeit des untersuchten Schwermetalls in verschiedenen Böden abzuschätzen. Eine quantitative Voraussage der von Pflanzen zu erwartenden Thalliumaufnahme ist damit jedoch nicht möglich.
    Notes: Summary A significant decrease of thallium soil content after cultivation of rape (Brassica napus L. var. napus) was found on two differently contaminated soils of the alluvial fan of the Neckar river near Heidelberg (FRG). The plants showed a higher enrichment on the contaminated soil than on the uncontaminated one. On the other hand, a sequential extraction procedure indicated that on the contaminated soil thallium is mainly bound by adsorption. Additionally, thallium loss due to rape cultivation has been determined for each extraction step. The extraction procedure proved to be useful for estimating the relative plant availability of this metal in soils, but a quantitative prediction of metal transfer into plants cannot be presented.
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  • 4
    ISSN: 1432-1904
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
    Type of Medium: Electronic Resource
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  • 5
    Publication Date: 1982-10-01
    Print ISSN: 0028-1042
    Electronic ISSN: 1432-1904
    Topics: Biology , Chemistry and Pharmacology , Natural Sciences in General
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