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
UT WoS
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.