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Reconstructing atmospheric Hg levels near the oldest chemical factory in central Europe using a tree ring archive
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SYSNO ASEP 0556471 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Reconstructing atmospheric Hg levels near the oldest chemical factory in central Europe using a tree ring archive Tvůrce(i) Nováková, Tereza (GLU-S) SAI, ORCID
Navrátil, Tomáš (GLU-S) RID, SAI, ORCID
Schütze, M. (DE)
Rohovec, Jan (GLU-S) RID, SAI
Matoušková, Šárka (GLU-S) RID, SAI
Hošek, Michal (UACH-T) SAI, ORCID, RID
Matys Grygar, Tomáš (UACH-T) RID, SAI, ORCIDČíslo článku 119215 Zdroj.dok. Environmental Pollution. - : Elsevier - ISSN 0269-7491
Roč. 304, July (2022)Poč.str. 11 s. Jazyk dok. eng - angličtina Země vyd. GB - Velká Británie Klíč. slova European larch ; Larix decidua ; Mercury pollution ; Hg-fungicide ; Marktredwitz ; Emissions Obor OECD Environmental sciences (social aspects to be 5.7) Vědní obor RIV – spolupráce Ústav anorganické chemie - Geologie a mineralogie CEP GA20-06728S GA ČR - Grantová agentura ČR Způsob publikování Omezený přístup Institucionální podpora GLU-S - RVO:67985831 ; UACH-T - RVO:61388980 UT WOS 000791701300003 EID SCOPUS 85127310896 DOI 10.1016/j.envpol.2022.119215 Anotace The Chemical Factory in Marktredwitz (CFM) is known as the oldest chemical factory in Germany (1778–1985), and from the beginning of the 20th century focused primarily on the production of mercury (Hg) compounds. Due to extensive pollution, together with employee health issues, the CFM was shut in 1985 by a government order and remediation works proceeded from 1986 to 1993. In this study, tree ring archives of European Larch (Larix decidua Mill.) were used to reconstruct changes of air Hg levels near the CFM. Mercury concentrations in larch boles decreased from 80.6 μg kg-1 at a distance of 0.34 km–3.4 μg kg-1 at a distance of 16 km. The temporal trend of atmospheric Hg emissions from the CFM reconstructed from the tree ring archives showed two main peaks. The first was in the 1920s, with a maximum tree ring Hg concentration 249.1 ± 43.9 μg kg-1 coinciding with when the factory had a worldwide monopoly on the production of Hg-based seed dressing fungicide. The second peak in the 1970s, with a maximum tree ring Hg concentration of 116.4 ± 6.3 μg kg-1, was associated with a peak in the general usage and production of Hg chemicals and goods. We used the tree ring record to reconstruct past atmospheric Hg levels using a simple model of Hg distribution between the larch tree rings and atmosphere. The precision of the tree ring model was checked against the results of air Hg measurements during the CFM remediation 30 years ago. According to the tree ring archives, the highest air Hg concentrations in the 1920s in Marktredwitz were over 70 ng m-3. Current air Hg levels of 1.18 ng m-3, assessed in the city of Marktredwitz, indicate the lowest air Hg in the past 150 years, underscoring the effective remediation of the CFM premises 30 years ago. Pracoviště Geologický ústav Kontakt Jana Popelková, popelkova@gli.cas.cz, Sabina Janíčková, Tel.: 233 087 272 Rok sběru 2023 Elektronická adresa https://www.sciencedirect.com/science/article/pii/S0269749122004298?via%3Dihub
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