title: Cross-Species Extrapolation of Uptake and Disposition of Neutral Organic Chemicals in Fish Using a Multispecies Physiologically-Based Toxicokinetic Model Framework.
abstract: The potential to bioconcentrate is generally considered to be an unwanted property of a substance. Consequently, chemical legislation, including the European REACH regulations, requires the chemical industry to provide bioconcentration data for chemicals that are produced or imported at volumes exceeding 100 tons per annum or if there is a concern that a substance is persistent, bioaccumulative, and toxic. For the filling of the existing data gap for chemicals produced or imported at levels that are below this stipulated volume, without the need for additional animal experiments, physiologically-based toxicokinetic (PBTK) models can be used to predict whole-body and tissue concentrations of neutral organic chemicals in fish. PBTK models have been developed for many different fish species with promising results. In this study, we developed PBTK models for zebrafish (Danio rerio) and roach (Rutilus rutilus) and combined them with existing models for rainbow trout (Onchorhynchus mykiss), lake trout (Salvelinus namaycush), and fathead minnow (Pimephales promelas). The resulting multispecies model framework allows for cross-species extrapolation of the bioaccumulative potential of neutral organic compounds. Predictions were compared with experimental data and were accurate for most substances. Our model can be used for probabilistic risk assessment of chemical bioaccumulation, with particular emphasis on cross-species evaluations.
authors.forename: Markus
authors.initials: M
authors.lastname: Brinkmann
authors.affiliation: Department of Ecotoxicology, Fraunhofer Institute for Molecular Ecology (IME) , Schmallenberg, 57392 Germany.
authors.forename: Christian
authors.initials: C
authors.lastname: Schlechtriem
authors.forename: Mathias
authors.initials: M
authors.lastname: Reininghaus
authors.forename: Kathrin
authors.initials: K
authors.lastname: Eichbaum
authors.affiliation: Department G3: Biochemistry and Ecotoxicology, Federal Institute of Hydrology (BFG) , Koblenz, 56068 Germany.
authors.forename: Sebastian
authors.initials: S
authors.lastname: Buchinger
authors.affiliation: Department G3: Biochemistry and Ecotoxicology, Federal Institute of Hydrology (BFG) , Koblenz, 56068 Germany.
authors.forename: Georg
authors.initials: G
authors.lastname: Reifferscheid
authors.affiliation: State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University , Nanjing, 210023 China.|College of Resources and Environmental Science, Chongqing University , Chongqing, 400030 China.|Key Laboratory of Yangtze Water Environment, Ministry of Education, Tongji University , Shanghai, 200092 China.
authors.forename: Henner
authors.initials: H
authors.lastname: Hollert
authors.forename: Thomas G
authors.initials: TG
authors.lastname: Preuss
mesh_terms: D000818:Animals; D005399:Fishes; D008954:Models, Biological; D009930:Organic Chemicals; D066007:Toxicokinetics; D014874:Water Pollutants, Chemical / Q000737:chemistry / Q000493:pharmacokinetics* / Q000633:toxicity
chemical_list: D009930:Organic Chemicals; D014874:Water Pollutants, Chemical