Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 495140
Title Modeling bioaccumulation and biomagnification of nonylphenol and its ethoxylates in estuarine-marine food chains
Author(s) Korsman, J.C.; Schipper, A.M.; Vos, M.G. de; Heuvel-Greve, M.J. van den; Vethaak, A.D.; Voogt, Pim de; Hendriks, A.J.
Source Chemosphere 138 (2015). - ISSN 0045-6535 - p. 33 - 39.
DOI https://doi.org/10.1016/j.chemosphere.2015.05.040
Department(s) IMARES Delta
IMARES Onderzoeksformatie
Publication type Refereed Article in a scientific journal
Publication year 2015
Keyword(s) Biotransformation - Elimination - Toxicokinetics - Uptake - Western Scheldt estuary
Abstract

There are several studies on bioaccumulation and biomagnification of nonylphenol (NP) and its ethoxylates (NPEOs), but their toxico-kinetic mechanisms remain unclear. In the present investigation, we explored the accumulation of NP and NPEOs in estuarine-marine food chains with a bioaccumulation model comprising five trophic levels. Using this model, we estimated uptake and elimination rate constants for NPEOs based on the organisms' weight and lipid content and the chemicals' Kow. Further, we calculated accumulation factors for NP and NPEOs, including biota-sediment accumulation factors (BSAF) and biomagnification factors (BMF), and compared these to independent field measurements collected in the Western Scheldt estuary in The Netherlands and field data reported in the literature. The estimated BSAF values for NP and total NPEOs were below 1 for all trophic levels. The estimated BMF values were around 1 for all trophic levels except for the highest level (carnivorous mammals and birds). For this trophic level, the estimated BMF value varied between 0.1 and 2.4, depending on the biotransformation capacity. For all trophic levels, except primary producers, the accumulation estimates that accounted for biotransformation of NPEOs into NP were closer to the field data than model estimates that did not include biotransformation, indicating that NP formation by biotransformation of NPEOs might occur in organisms.

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