VÖRÖŠ, Dominik, Mercedes DÍAZ-SOMOANO, Eva GERŠLOVÁ, Ivana SÝKOROVÁ and Isabel SUÁREZ-RUIZ. Mercury contamination of stream sediments in the North Bohemian Coal District (Czech Republic): Mercury speciation and the role of organic matter. Chemosphere. Elsevier Science, 2018, vol. 211, November 2018, p. 664-673. ISSN 0045-6535. Available from: https://dx.doi.org/10.1016/j.chemosphere.2018.07.196.
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Basic information
Original name Mercury contamination of stream sediments in the North Bohemian Coal District (Czech Republic): Mercury speciation and the role of organic matter
Authors VÖRÖŠ, Dominik (203 Czech Republic, belonging to the institution), Mercedes DÍAZ-SOMOANO (724 Spain, guarantor), Eva GERŠLOVÁ (203 Czech Republic, belonging to the institution), Ivana SÝKOROVÁ (203 Czech Republic) and Isabel SUÁREZ-RUIZ (724 Spain).
Edition Chemosphere, Elsevier Science, 2018, 0045-6535.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10500 1.5. Earth and related environmental sciences
Country of publisher United Kingdom of Great Britain and Northern Ireland
Confidentiality degree is not subject to a state or trade secret
Impact factor Impact factor: 5.108
RIV identification code RIV/00216224:14310/18:00103512
Organization unit Faculty of Science
Doi http://dx.doi.org/10.1016/j.chemosphere.2018.07.196
UT WoS 000446149600072
Keywords in English Mercury contamination; Stream sediments; Mercury speciation; Organic matter
Tags International impact, Reviewed
Changed by Changed by: Mgr. Tereza Miškechová, učo 341652. Changed: 2/5/2019 14:58.
Abstract
Industrial expansion in the North Bohemian Coal District over the past decades has had an adverse effect not only on stream sediments but also on the freshwater system. So far mercury occurrence has not been properly investigated in the area. In response to this situation, the present study applies mercury quantification and speciation in order to predict the possible mobility of mercury. The enrichment factor (EF) and sediment quality guidelines (SQGs) were used to calculate the degree of mercury contamination. An automatic mercury analyser was employed to detect the total mercury content (Hg-T) and Thermal Desorption technique was used to identify mercury species. All the sediment samples were assessed with the contamination degree which increased to very severe in stream sediments in the middle section of the river course. Mercury species identified were chiefly the insoluble forms Hg-FeS2 and HgS. Lignite components and combustion residues were identified as the primary source of Hg contamination in the area.
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