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Lead isotope ratios as tool for elucidation of chemical environment in a system of Macrolepiota procera (Scop.) Singer - soil.

Authors
  • Đurđić, Slađana1
  • Stanković, Vesna2
  • Ražić, Slavica3
  • Mutić, Jelena4, 5
  • 1 University of Belgrade, Faculty of Chemistry, Studentski trg 12-16, Belgrade, 11000, Serbia. , (Serbia)
  • 2 Institute of Chemistry, Technology and Metallurgy, University of Belgrade, Njegoševa 12, Belgrade, 11000, Serbia. , (Serbia)
  • 3 Faculty of Pharmacy, Department of Analytical Chemistry, University of Belgrade, Vojvode Stepe 450, Belgrade, 11221, Serbia. [email protected] , (Serbia)
  • 4 University of Belgrade, Faculty of Chemistry, Studentski trg 12-16, Belgrade, 11000, Serbia. [email protected] , (Serbia)
  • 5 Ghent University Global Campus, Incheon, South Korea. [email protected] , (North Korea)
Type
Published Article
Journal
Environmental Science and Pollution Research
Publisher
Springer-Verlag
Publication Date
Nov 01, 2021
Volume
28
Issue
42
Pages
59003–59014
Identifiers
DOI: 10.1007/s11356-020-07947-6
PMID: 32048191
Source
Medline
Keywords
Language
English
License
Unknown

Abstract

The analysis of isotope ratios of lead in the mushrooms and soil, where they were grown, assisted with a principal component analysis, offered a new perspective for understanding possible chemical environment in a real setup of those compartments. The content of lead and its isotope compositions were determined in soil samples and mushroom Macrolepiota procera from unpolluted area of Mountain Goč, Serbia. Sequential extraction procedure based on the Commission of the European Community Bureau of Reference (BCR) was applied on soil samples in order to determine the distribution of lead in the labile and un-labile fractions of the soil. Caps and stipes of mushrooms were subjected to microwave acid-assisted digestion prior to measurements by inductively coupled plasma quadrupole mass spectrometer for determination of lead content and lead isotope ratios. Information about the chemical fractionation of Pb in soil, Pb isotopic data from soil fractions and fruiting bodies allowed a more detailed insight on the uptake mechanisms. Lead was predominantly associated with reducible fraction (~ 60%). Only its small portion (∼ 1%) was present in the exchangeable and acid-extractable fractions suggesting the low mobility of Pb. Lead isotope analysis revealed the presence of anthropogenic lead in the surface soil. Significant lower 206Pb/207Pb compared with other fractions was found in exchangeable and acid-soluble fraction (1.331 ± 0.010), which corresponds to the isotope ratio of European gasoline. The highest 206Pb/207Pb ratio was observed in reducible fraction (1.162 ± 0.007), while in oxidizable and residual fraction, those values were similar (1.159 ± 0.006 and 1.159 ± 0.004, respectively). Distinction of exchangeable and acid-extractable fractions from others was also confirmed, for the first time, by principal component analysis. The analysis of four isotope ratios (206Pb/207Pb, 208Pb/206Pb, 206Pb/204Pb, and 207Pb/204Pb) indicated that the analyzed M. procera accumulates lead from the first two fractions of topsoil layers. © 2020. Springer-Verlag GmbH Germany, part of Springer Nature.

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