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články
články
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Source: BMČ - články
Title
Unraveling the Relationship between the Concentrations of Hydrophobic Organic Contaminants in Freshwater Fish of Different Trophic Levels and Water Using Passive Sampling / F. Smedes, J. Sobotka, TP. Rusina, P. Fialová, P. Carlsson, R. Kopp, B. Vrana,
Author
Smedes, Foppe
Faculty of Science, Centre RECETOX, Masaryk University, Kamenice 753/5, 625 00 Brno, Czech Republic.

Sobotka, Jaromír
Faculty of Science, Centre RECETOX, Masaryk University, Kamenice 753/5, 625 00 Brno, Czech Republic.

Rusina, Tatsiana P
Faculty of Science, Centre RECETOX, Masaryk University, Kamenice 753/5, 625 00 Brno, Czech Republic.

Fialová, Pavla
Faculty of Science, Centre RECETOX, Masaryk University, Kamenice 753/5, 625 00 Brno, Czech Republic.

Carlsson, Pernilla
Faculty of Science, Centre RECETOX, Masaryk University, Kamenice 753/5, 625 00 Brno, Czech Republic. Fram Centre, Norwegian Institute for Water Research (NIVA), Hjalmar Johansen Gate 14, 9007 Tromsø, Norway.

Kopp, Radovan
Faculty of AgriSciences, Department of Zoology, Fisheries, Hydrobiology and Apiculture (FA), Mendel University in Brno, Zemědělská 1, 61300 Brno, Czech Republic.

Vrana, Branislav
Faculty of Science, Centre RECETOX, Masaryk University, Kamenice 753/5, 625 00 Brno, Czech Republic.

Cited source
Environmental science & technology. 2020, roč. 54, č. 13, s. 7942-7951. ISSN: 0013-936X; 1520-5851 (elektronická verze).
Date of issue
2020
Language
angličtina
Country
Spojené státy americké
Document type
články
DOI
Pubmed ID
Link
Record number
bmc20028022
Persistent link
English Abstract
The concentrations of hydrophobic organic compounds (HOCs) in aquatic biota are used for compliance, as well as time and spatial trend monitoring in the aqueous environment (European Union water framework directive, OSPAR). Because of trophic magnification in the food chain, the thermodynamic levels of HOCs, for example, polychlorinated biphenyl congeners, dichlorodiphenyltrichloroethane, and brominated diphenyl ether congeners, in higher trophic level (TL) organisms are expected to be strongly elevated above those in water. This work compares lipid-based concentrations at equilibrium with the water phase derived from aqueous passive sampling (CL⇌water) with the lipid-based concentrations in fillet and liver of fish (CL) at different TLs for three water bodies in the Czech Republic and Slovakia. The CL values of HOCs in fish were near CL⇌water, only after trophic magnification up to TL = 4. For fish at lower TL, CL progressively decreased relative to CL⇌water as KOW of HOCs increased above 106. The CL value decreasing toward the bottom of the food chain suggests nonequilibrium for primary producers (algae), which is in agreement with modeling passive HOC uptake by algae. Because trophic magnification and the resulting CL in fish exhibit large natural variability, CL⇌water is a viable alternative for monitoring HOCs using fish, showing a twofold lower confidence range and requiring less samples.
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