Equilibrium sampling of suspended particulate matter as a universal proxy for fish and mussel monitoring

Autor: Theo Wernicke, Sebastian Abel, Beate I. Escher, Jan Koschorreck, Heinz Rüdel, Annika Jahnke
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Ecotoxicology and Environmental Safety, Vol 232, Iss , Pp 113285- (2022)
Druh dokumentu: article
ISSN: 0147-6513
DOI: 10.1016/j.ecoenv.2022.113285
Popis: Bioaccumulation of persistent and hydrophobic organic compounds in the aquatic environment puts secondary consumers, such as fish, at risk. To assess their exposure, monitoring programs with high numbers of individuals have been conducted worldwide over decades that require major efforts and raise ethical issues. This study aimed at testing suspended particulate matter (SPM) as an alternative and accessible abiotic matrix to estimate the internal exposure concentrations of such chemicals in fish and mussels. Muscle tissues of bream (Abramis brama), tissues of zebra mussels (Dreissena polymorpha) and SPM were collected from four major German rivers, Elbe, Danube, Saar and Saale, in 2018 within the national monitoring program of the German Environmental Specimen Bank. We used (i) total solvent extraction for biota samples to quantify the lipid-normalized concentrations of polychlorinated biphenyls, polycyclic aromatic hydrocarbons and hexachlorobenzene and (ii) passive equilibrium sampling of SPM to derive equilibrium partitioning concentrations in lipids and (iii) set these independent data sets into context. Since the ratio of lipid-normalized concentration / equilibrium partitioning concentration in lipids was in most cases
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