Detail publikačního výsledku

Methylmercury in tissues of fish from the Svratka River, Czech Republic

OLEJNÍČKOVÁ, Z.; HOLEŠOVSKÝ, J.; VÁVROVÁ, M.; KRÁLOVÁ, Z.; MICHÁLEK, J.

Originální název

Methylmercury in tissues of fish from the Svratka River, Czech Republic

Anglický název

Methylmercury in tissues of fish from the Svratka River, Czech Republic

Druh

Článek WoS

Originální abstrakt

Mercury is a global pollutant with a disturbing occurrence and fate in aquatic ecosystem where it is accumulated in fish through a transformation process to create its highly toxic form – methylmercury. This study is focused on the evaluation of contamination of fish (muscle and skin tissue) from the Svratka River (South Moravian Region, Czech Republic) by methylmercury. The fish were caught at two sampling sites – upstream and downstream from the municipal wastewater treatment plant (WWTP) Brno-Modrice. Extraction of methylmercury was performed according to a method based on methylmercury digestion in hydrochloric acid and its subsequent extraction with toluene. The subsequent analysis was carried out using a gas chromatograph equipped with a DB-17 capillary column and a micro electron capture detector. Selected samples were also analysed to determine total mercury concentrations using a special single-purpose atomic absorption spectrometer for determination of mercury. Obtained data were statistically evaluated. The normality of the data was rejected in most cases, and thus nonparametric statistical methods were used for further analysis.

Anglický abstrakt

Mercury is a global pollutant with a disturbing occurrence and fate in aquatic ecosystem where it is accumulated in fish through a transformation process to create its highly toxic form – methylmercury. This study is focused on the evaluation of contamination of fish (muscle and skin tissue) from the Svratka River (South Moravian Region, Czech Republic) by methylmercury. The fish were caught at two sampling sites – upstream and downstream from the municipal wastewater treatment plant (WWTP) Brno-Modrice. Extraction of methylmercury was performed according to a method based on methylmercury digestion in hydrochloric acid and its subsequent extraction with toluene. The subsequent analysis was carried out using a gas chromatograph equipped with a DB-17 capillary column and a micro electron capture detector. Selected samples were also analysed to determine total mercury concentrations using a special single-purpose atomic absorption spectrometer for determination of mercury. Obtained data were statistically evaluated. The normality of the data was rejected in most cases, and thus nonparametric statistical methods were used for further analysis.

Klíčová slova

methylmercury, fish, Spearmans rank correlation, Wilcoxons test

Klíčová slova v angličtině

methylmercury, fish, Spearmans rank correlation, Wilcoxons test

Autoři

OLEJNÍČKOVÁ, Z.; HOLEŠOVSKÝ, J.; VÁVROVÁ, M.; KRÁLOVÁ, Z.; MICHÁLEK, J.

Rok RIV

2015

Vydáno

01.12.2014

ISSN

1018-4619

Periodikum

Fresenius Environmental Bulletin

Svazek

23

Číslo

12b

Stát

Spolková republika Německo

Strany od

3319

Strany do

3324

Strany počet

6

BibTex

@article{BUT103824,
  author="Zuzana {Bílková} and Jan {Holešovský} and Milada {Vávrová} and Zuzana {Králová} and Jaroslav {Michálek}",
  title="Methylmercury in tissues of fish from the Svratka River, Czech Republic",
  journal="Fresenius Environmental Bulletin",
  year="2014",
  volume="23",
  number="12b",
  pages="3319--3324",
  issn="1018-4619"
}