Accumulation of perfluorooctane sulfonate (PFOS) in the food chain of the Western Scheldt estuary : Comparing field measurements with kinetic modeling
| Autor: | A. Jan Hendriks, S.P.J. van Leeuwen, Mark A. J. Huijbregts, P. de Voogt, Pim E.G. Leonards, Martine G. de Vos, Martine J. van den Heuvel-Greve, A. Dick Vethaak, Kristin Van de Vijver |
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| Přispěvatelé: | Earth Surface Science (IBED, FNWI), Chemistry and Biology |
| Jazyk: | angličtina |
| Rok vydání: | 2008 |
| Předmět: |
Food Chain
Environmental Engineering Elimination Health Toxicology and Mutagenesis Surfactants Kinetics Uptake Models Biological Food chain chemistry.chemical_compound Reaction rate constant Pulmonary surfactant Animals Environmental Chemistry Water pollution Biology Netherlands Fluorocarbons Chemistry Public Health Environmental and Occupational Health General Medicine General Chemistry Pollution Bioaccumulation Perfluorooctane Perfluorinated compounds Sulfonate Alkanesulfonic Acids Environmental chemistry Environmental Sciences Water Pollutants Chemical Environmental Monitoring |
| Zdroj: | Chemosphere Chemosphere 70 (2008) 10 Chemosphere, 70(10), 1766-1773. Elsevier Chemosphere, 70(10), 1766-1773 de Vos, M G, Huijbregts, M A J, van den Heuvel-Greve, M, Vethaak, A D, de Vijver, K I V, Leonards, P E G, van Leeuwen, S P J, de Voogt, P & Hendriks, A J 2008, ' Accumulation of perfluorooctane sulfonate (PFOS) in the food chain of the Western Scheldt estuary: Comparing field measurements with kinetic modeling ', Chemosphere, vol. 70, no. 10, pp. 1766-1773 . https://doi.org/10.1016/j.chemosphere.2007.08.038 Chemosphere, 70, 1766-1773 Chemosphere, 70(10), 1766-1773. Elsevier Limited Chemosphere, 70, 10, pp. 1766-1773 |
| ISSN: | 0045-6535 1766-1773 |
| Popis: | The environmentally persistent perfluorooctane sulfonate (PFOS) is a perfluoroalkylated acid (PFA), which has been found to accumulate and biomagnify through food webs all over the world. In the present investigation, the accumulation kinetics of PFOS was explored using the bioaccumulation model OMEGA. As accumulation behavior of PFOS may show similarities to fatty acids as well as to neutral organic compounds, different modeling approaches were used. Accumulation kinetics of PFOS was modeled similar to (1) moderately and (2) highly hydrophobic compounds, (3) metals and (4) as a combination of hydrophobic compounds and metals. Modeled elimination and uptake rate constants were compared to empirical rate constants from literature. Subsequently, model predictions were compared to field-based biota-suspended solids accumulation ratios (BSAF) in the estuarine food chain of the Western Scheldt. The Netherlands. Results show that uptake of PFOS is comparable to moderately hydrophobic compounds and elimination is best described by elimination kinetics of metals. These observations indicate that the accumulation behavior of PFOS is comparable to that of short and medium chained fatty acids. (C) 2007 Elsevier Ltd. All rights reserved. |
| Databáze: | OpenAIRE |
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