Publication detail

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

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

Original Title

Type

journal article in Web of Science

Language

English

Original Abstract

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.

Keywords

methylmercury, fish, Spearmans rank correlation, Wilcoxons test

Authors

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

RIV year

2014

Released

1. 12. 2014

ISBN

1018-4619

Periodical

Fresenius Environmental Bulletin

Year of study

Number

12b

State

Federal Republic of Germany

Pages from

3319

Pages to

3324

Pages count

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"
}