Larch Tree Rings as a Tool for Reconstructing 20th Century Central European Atmospheric Mercury Trends
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985831%3A_____%2F18%3A00496017" target="_blank" >RIV/67985831:_____/18:00496017 - isvavai.cz</a>
Result on the web
<a href="http://dx.doi.org/10.1021/acs.est.8b02117" target="_blank" >http://dx.doi.org/10.1021/acs.est.8b02117</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1021/acs.est.8b02117" target="_blank" >10.1021/acs.est.8b02117</a>
Alternative languages
Result language
angličtina
Original language name
Larch Tree Rings as a Tool for Reconstructing 20th Century Central European Atmospheric Mercury Trends
Original language description
We propose the tree rings of European Larch (Larix decidua) as a widely available and reliable geochemical archive of local and regional changes in atmospheric mercury (Hg). Mean Hg concentrations in larch tree rings from 8 background sites across the Czech Republic ranged from 2.2 to 4.8 μg kg−1, the maximum concentrations occurred in the period 1951−1970. At 3 sites impacted by Hg-emission sources [gold amalgamation processing, caustic soda production, and lead (Pb) ore smelting] mean larch tree ring Hg concentrations were significantly elevated relative to background sites. Changes in larch tree ring Hg concentrations were temporally coherent with known activities at the sites that would alter Hg emissions, the nearly simultaneous response in tree rings indicated little or no translocation of Hg within the larch bole. Based on the present-day atmospheric Hg concentration of 1.63 ng m−3 at the intensively monitored Czech Global Mercury Observation System site and the most recent mean tree ring Hg concentration of 2.8 μg kg−1 in colocated larch trees, we developed a simple distribution model of Hg between the atmosphere and larch tree rings. We applied the model using observed changes of Hg in larch tree rings from the countrywide background sites to reconstruct past atmospheric Hg concentrations in central Europe. Modeled Hg concentrations were in agreement with annual means from the European Monitoring and Evaluation Programme observatories.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10511 - Environmental sciences (social aspects to be 5.7)
Result continuities
Project
<a href="/en/project/GA16-14762S" target="_blank" >GA16-14762S: Mercury and methylmercury in surface waters and soils at two sites with contrasting deposition histories</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Environmental Science and Technology
ISSN
0013-936X
e-ISSN
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Volume of the periodical
52
Issue of the periodical within the volume
19
Country of publishing house
US - UNITED STATES
Number of pages
9
Pages from-to
11060-11068
UT code for WoS article
000446542100018
EID of the result in the Scopus database
2-s2.0-85054091669