Distribution of thallium and accompanying metals in tree rings of Scots pine (Pinus sylvestris L.) from a smelter-affected area |
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| Authors: | Aleš Vaněk Vladislav Chrastný Leslaw Teper Jerzy Cabala Vít Pení?ek Michael Komárek |
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| Institution: | 1. Department of Soil Science and Soil Protection, Czech University of Life Sciences Prague, Kamýcká 129, 165 21 Praha 6, Czech Republic;2. Czech Geological Survey, Geologická 6, 152 00 Praha 5, Czech Republic;3. Faculty of Agriculture, University of South Bohemia, Studentská 13, 370 05 ?eské Budějovice, Czech Republic;4. Department of Economic Geology, University of Silesia, Bedzinska 60, 41-200 Sosnowiec, Poland;5. Department of Agro-Environmental Chemistry and Plant Nutrition, Czech University of Life Sciences Prague, Kamýcká 129, 165 21 Praha 6, Czech Republic |
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| Abstract: | Distribution of Tl, Zn, Cd, Pb, K, Ca, Mg and Mn and Pb isotopic composition in tree rings of Scots pine (Pinus sylvestris L.) from an area affected by primary Zn smelting (Olkusz, southern Poland) were investigated. Elevated concentrations of Tl (up to 0.8 mg kg−1) in pine trees imply that conifers tend to accumulate this metal to some extent. A generally positive relationship between soil and tree-ring Tl levels was identified. The Tl patterns in stem wood did not correspond to changes in Tl deposition; the lateral translocation of Tl in the sapwood and its accumulation at the sapwood-heartwood boundary (i.e., in the inner sapwood) is suggested. It is probable that the specific behavior of Tl in trees results from its biogeochemical analogy with K. In contrast, tree-ring patterns of Zn and Cd significantly correlated with their deposition; nevertheless, a partial shift of these metals towards the stem center cannot be excluded. The isotopic composition of Pb (206Pb/207Pb ~ 1.172–1.184) in trees and underlying soils revealed the predominant influence of smelter emissions (206Pb/207Pb ~ 1.17) on Pb contamination. Analysis of main nutrients (Ca, Mg and Mn) in wood reflected environmental changes related to acid deposition. |
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| Keywords: | Trees Wood Soil Smelter Deposition Acidification |
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