Spatial and Temporal Trends in Contamination of the Czech Part of the Elbe River by Mercury Between 1991 and 2016

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Authors

NOVOTNA Kamila SVOBODOVA Zdenka HARUŠTIAKOVÁ Danka MIKULA Přemysl

Year of publication 2020
Type Article in Periodical
Magazine / Source Bulletin of Environmental Contamination and Toxicology
MU Faculty or unit

Faculty of Science

Citation
Web https://link.springer.com/article/10.1007%2Fs00128-020-03005-6
Doi http://dx.doi.org/10.1007/s00128-020-03005-6
Keywords Heavy metals; Pollution; Risk assessment; Total mercury
Description We summarized available data concerning contamination of the Czech part of the Elbe River by mercury and assessed the potential risks to humans connected with the consumption of contaminated fish. Total mercury concentrations were evaluated in dorsal muscle of chub (Squalius cephalus) and bream (Abramis brama) that were collected at 11 sampling sites in the period from 1991 to 2016. Significant differences among sites were found for both species. The highest contamination was observed near the non-ferrous Kovohute metal works at Celakovice and also downstream from the Spolana chemical plant at Neratovice. A significant decline in contamination with time (concentrations decreasing from 1.65 to 0.22 mg kg(-1);p = 0.004) was revealed in chub downstream from the Spolana plant. Calculated hazard indices (HIs) were below 1, therefore, adverse health effects on the general Czech population connected with the consumption of fish from the Elbe River were not expected.
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