Publication Details

Category Text Publication
Reference Category Journals
DOI 10.1016/j.envpol.2008.08.007
Title (Primary) Sorption of alkylphenols on Ebro River sediments: comparing isotherms with field observations in river water and sediments
Author Navarro, A.; Endo, S.; Gocht, T.; Barth, J.A.C.; Lacorte, S.; Barceló, D.; Grathwohl, P.
Source Titel Environmental Pollution
Year 2009
Department AUC
Volume 157
Issue 2
Page From 698
Page To 703
Language englisch
Keywords Nonylphenol; Octylphenol; Sorption; Sediments; Field concentrations
Abstract This study reports sorption isotherms of the endocrine disruptors nonylphenol (NP) and octylphenol (OP) in three sediment samples from the Ebro River basin (NE Spain), with organic carbon fractions (fOC) ranging from 0.0035 to 0.082 gOC g-1. All isotherms were fitted to the Freundlich model with slightly nonlinear exponents ranging from 0.80 to 0.94. The solubility of the compounds as well as the organic carbon (OC) content had the strongest influences on the sorption behavior of these compounds. Comparison of the laboratory-spiked samples with the native contamination of NP of 45 water and concurrent sediment samples resulted in reasonable matches between both data sets, even though the lowest concentrations in the field were not completely reached in laboratory tests. This good agreement indicates that sorption laboratory data can be extrapolated to environmental levels and therefore the distribution of nonylphenol between sediments and water can be predicted with a precision of one order of magnitude. Furthermore, laboratory experiments with simultaneous loading of NP and OP revealed negligible competition for sorption sites at low concentrations.Laboratory sorption of nonylphenol compared to field concentrations showed good agreements.
Persistent UFZ Identifier https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=10349
Navarro, A., Endo, S., Gocht, T., Barth, J.A.C., Lacorte, S., Barceló, D., Grathwohl, P. (2009):
Sorption of alkylphenols on Ebro River sediments: comparing isotherms with field observations in river water and sediments
Environ. Pollut. 157 (2), 698 - 703 10.1016/j.envpol.2008.08.007