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Stability of mercury concentration measurements in archived soil and peat samples
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SYSNO ASEP 0491047 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Stability of mercury concentration measurements in archived soil and peat samples Author(s) Navrátil, Tomáš (GLU-S) RID, SAI, ORCID
Burns, D. A. (US)
Nováková, Tereza (GLU-S) SAI, ORCID
Kaňa, Jiří (BC-A) RID, ORCID
Rohovec, Jan (GLU-S) RID, SAI
Roll, Michal (GLU-S) ORCID, SAI
Ettler, V. (CZ)Source Title Chemosphere. - : Elsevier - ISSN 0045-6535
Roč. 208, October 2018 (2018), s. 707-711Number of pages 5 s. Publication form Print - P Language eng - English Country GB - United Kingdom Keywords CV-AAS ; forest soil ; mercury ; Re-measurement ; soil archive ; storage Subject RIV DD - Geochemistry OECD category Environmental sciences (social aspects to be 5.7) R&D Projects GA16-14762S GA ČR - Czech Science Foundation (CSF) Institutional support GLU-S - RVO:67985831 ; BC-A - RVO:60077344 UT WOS 000441999400078 EID SCOPUS 85048224466 DOI 10.1016/j.chemosphere.2018.06.033 Annotation Archived soil samples can provide important information on the history of environmental contamination and by comparison with recently collected samples, temporal trends can be inferred. Little previous work has addressed whether mercury (Hg) concentrations in soil samples are stable with long-term storage under standard laboratory conditions. In this study, we have re-analyzed using cold vapor atomic absorption spectroscopy a set of archived soil samples that ranged from relatively pristine mountainous sites to a polluted site near a non-ferrous metal smelter with a wide range of Hg concentrations (6.7–6485 μg kg−1). Samples included organic and mineral soils and peats with a carbon content that ranged from 0.2 to 47.7%. Soil samples were stored in polyethylene bags or bottles and held in laboratory rooms where temperature was not kept to a constant value. Mercury concentrations in four subsets of samples were originally measured in 2000, 2005, 2006 and 2007, and re-analyzed in 2017, i.e. after 17, 12, 11 and 10 years of storage. Statistical analyses of either separated or lumped data yielded no significant differences between the original and current Hg concentrations. Based on these analyses, we show that archived soil and peat samples can be used to evaluate historical soil mercury contamination. Workplace Institute of Geology Contact Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272 Year of Publishing 2019
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