Persistent mercury hot spot in Central Europe and Skalka Dam reservoir as a long-term mercury trap
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F20%3A00508921" target="_blank" >RIV/61388980:_____/20:00508921 - isvavai.cz</a>
Alternative codes found
RIV/67985831:_____/20:00508921 RIV/44555601:13520/20:43895689
Result on the web
<a href="http://hdl.handle.net/11104/0309323" target="_blank" >http://hdl.handle.net/11104/0309323</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10653-019-00408-1" target="_blank" >10.1007/s10653-019-00408-1</a>
Alternative languages
Result language
angličtina
Original language name
Persistent mercury hot spot in Central Europe and Skalka Dam reservoir as a long-term mercury trap
Original language description
This study aimed to evaluate the relevance of the floodplain pollution sinks of the legacy mercury (Hg) hot spot in Kössein–Röslau river system (east Bavaria, Germany) for further mobilisation and fluvial transport of mercury in suspended particulate matter (SPM), as an important transport medium of Hg in aquatic systems. The channel belt fluvial erosion as the secondary pollution pathway was also considered. The hot spot has originated from the production of Hg compounds such as C2H5HgCN and C6H5HgCl in Chemical Factory Marktredwitz, and even more than 30 years after the factory abandonment, the Kössein and the Röslau rivers still export polluted fine grained SPM (median 25–35 μm) with mean annual concentrations of 17.4 mg/kg. SPM sampling was performed by floating samplers, supported by floodplain drill cores and by recent channel sediments manually collected along the polluted rivers further. Based on long-term monitoring data set from state enterprise Povodí Ohře, fish in the Skalka Reservoir have had Hg concentrations in their muscles up to 6 mg/kg for at least the last 14 years, exceeding the European maximal limit of 0.5 mg/Hg/kg. In addition, the Hg inventory in the Kössein–Röslau river stretches was therefore calculated, it produced an estimate of ca. 21 t Hg in a 22-km-long channel belt, prone to fluvial remobilisation during floods. Although a major portion of the fluvially transported Hg has yet been trapped by the Skalka Reservoir, the Hg content in the SPM exported farther downstream still varies between 2 and 10 mg/kg Hg. Due to the considerable Hg inventory in the Kössein–Röslau rivers, an improvement will not occur downstream unless specific measures target the secondary pollution mechanism(s).
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
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Environmental Geochemistry and Health
ISSN
0269-4042
e-ISSN
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Volume of the periodical
42
Issue of the periodical within the volume
5
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
18
Pages from-to
1273-1290
UT code for WoS article
000536437000004
EID of the result in the Scopus database
2-s2.0-85072196996