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Isotopic Tracing of Thallium Contamination in Soils Affected by Emissions from Coal-Fired Power Plants
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SYSNO ASEP 0464985 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Isotopic Tracing of Thallium Contamination in Soils Affected by Emissions from Coal-Fired Power Plants Author(s) Vaněk, A. (CZ)
Grösslová, Z. (CZ)
Mihaljevič, M. (CZ)
Trubač, J. (CZ)
Ettler, V. (CZ)
Teper, L. (PL)
Cabala, J. (PL)
Rohovec, Jan (GLU-S) RID, SAI
Zádorová, T. (CZ)
Penížek, V. (CZ)
Pavlů, L. (CZ)
Holubík, O. (CZ)
Němeček, K. (CZ)
Houška, J. (CZ)
Drábek, O. (CZ)
Ash, C. (CZ)Source Title Environmental Science and Technology - ISSN 0013-936X
Roč. 50, č. 18 (2016), s. 9864-9871Number of pages 8 s. Publication form Print - P Language eng - English Country US - United States Keywords environmental implications ; isotope ; fractionation ; combustion ; utility ; health ; oxides ; silver ; lead Subject RIV DD - Geochemistry Institutional support GLU-S - RVO:67985831 UT WOS 000384037900009 EID SCOPUS 84988592724 DOI 10.1021/acs.est.6b01751 Annotation Here, for the first time, we report the thallium (Tl) isotope record in moderately contaminated soils with contrasting land management (forest and meadow soils), which have been affected by emissions from coal-fired power plants. Our findings clearly demonstrate that Tl of anthropogenic (high-temperature) origin with light isotope composition was deposited onto the studied soils, where heavier Tl (epsilon205Tl ∼ -1) naturally occurs. The results show a positive linear relationship (R2 = 0.71) between 1/Tl and the isotope record, as determined for all the soils and bedrocks, also indicative of binary Tl mixing between two dominant reservoirs. We also identified significant Tl isotope variations within the products from coal combustion and thermo-desorption experiments with local Tl-rich coal pyrite. Bottom ash exhibited the heaviest Tl isotope composition (epsilon205Tl ∼ 0), followed by fly ash (epsilon205Tl between -2.5 and -2.8) and volatile Tl fractions (epsilon205Tl between -6.2 and -10.3), suggesting partial Tl isotope fractionations. Despite the evident role of soil processes in the isotope redistributions, we demonstrate that Tl contamination can be traced in soils and propose that the isotope data represent a possible tool to aid our understanding of postdepositional Tl dynamics in surface environments for the future. Workplace Institute of Geology Contact Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272 Year of Publishing 2017
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