The interplay between total mercury, methylmercury and dissolved organic matter in fluvial systems: A latitudinal study across Europe.
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989592%3A15310%2F18%3A73592019" target="_blank" >RIV/61989592:15310/18:73592019 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0043135418305244" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0043135418305244</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.watres.2018.06.064" target="_blank" >10.1016/j.watres.2018.06.064</a>
Alternative languages
Result language
angličtina
Original language name
The interplay between total mercury, methylmercury and dissolved organic matter in fluvial systems: A latitudinal study across Europe.
Original language description
Large-scale studies are needed to identify the drivers of total mercury (THg) and monomethyl-mercury (MeHg) concentrations in aquatic ecosystems. Studies attempting to link dissolved organic matter (DOM) to levels of THg or MeHg are few and geographically constrained. Additionally, stream and river systems have been understudied as compared to lakes. Hence, the aim of this study was to examine the influence of DOM concentration and composition, morphological descriptors, land uses and water chemistry on THg and MeHg concentrations and the percentage of THg as MeHg (%MeHg) in 29 streams across Europe spanning from 41°N to 64 °N. THg concentrations (0.06–2.78 ng L−1) were highest in streams characterized by DOM with a high terrestrial soil signature and low nutrient content. MeHg concentrations (7.8–159 pg L−1) varied non-systematically across systems. Relationships between DOM bulk characteristics and THg and MeHg suggest that while soil derived DOM inputs control THg concentrations, autochthonous DOM (aquatically produced) and the availability of electron acceptors for Hg methylating microorganisms (e.g. sulfate) drive %MeHg and potentially MeHg concentration. Overall, these results highlight the large spatial variability in THg and MeHg concentrations at the European scale, and underscore the importance of DOM composition on mercury cycling in fluvial systems.
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
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Continuities
N - Vyzkumna aktivita podporovana z neverejnych zdroju
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
WATER RESEARCH
ISSN
0043-1354
e-ISSN
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Volume of the periodical
144
Issue of the periodical within the volume
2018
Country of publishing house
GB - UNITED KINGDOM
Number of pages
10
Pages from-to
172-182
UT code for WoS article
000447569300016
EID of the result in the Scopus database
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