J 2018

Mercury contamination of stream sediments in the North Bohemian Coal District (Czech Republic): Mercury speciation and the role of organic matter

VÖRÖŠ, Dominik; Mercedes DÍAZ-SOMOANO; Eva GERŠLOVÁ; Ivana SÝKOROVÁ; Isabel SUÁREZ-RUIZ et al.

Základní údaje

Originální název

Mercury contamination of stream sediments in the North Bohemian Coal District (Czech Republic): Mercury speciation and the role of organic matter

Autoři

VÖRÖŠ, Dominik; Mercedes DÍAZ-SOMOANO; Eva GERŠLOVÁ; Ivana SÝKOROVÁ a Isabel SUÁREZ-RUIZ

Vydání

Chemosphere, Elsevier Science, 2018, 0045-6535

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10500 1.5. Earth and related environmental sciences

Stát vydavatele

Velká Británie a Severní Irsko

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 5.108

Označené pro přenos do RIV

Ano

Kód RIV

RIV/00216224:14310/18:00103512

Organizační jednotka

Přírodovědecká fakulta

EID Scopus

Klíčová slova anglicky

Mercury contamination; Stream sediments; Mercury speciation; Organic matter

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 2. 5. 2019 14:58, Mgr. Tereza Miškechová

Anotace

V originále

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.