title: Occurrence and behaviour of selected hydrophobic alkylphenolic compounds in the Danube River.
abstract: Six hydrophobic alkylphenolic compounds were investigated for the first time simultaneously in four different matrices in the Danube River. Maximum sediment concentrations were 2.83, 2.10, 0.28, and 0.035 mg kg(-1) for nonylphenol, nonylphenol monoethoxylate, nonylphenol diethoxylate and octylphenol. Maximum levels in suspended particulate matter (SPM) were 0.18, 0.12, 0.10, and 0.003 mg kg(-1). No correlation between concentrations in SPM and sediments was found. Octylphenol monoethoxylate and octylphenol diethoxylate were recorded only in sediment at one location. In mussels and water only nonylphenol and octylphenol were found. Nonylphenol concentrations in mussels (up to 0.34 mg kg(-1)) correlate with concentrations found in SPM and indicate a slight bioaccumulation. Concentrations in water were close to the limit of quantification. We assume in situ formation of nonylphenol monoethoxylate and nonylphenol in sediments at some locations. In some cases nonylphenol in sediments exceeded the provisional EU environmental quality standards.
authors.affiliation: Department of Environmental Geosciences, University of Vienna, Althanstrasse 14, 1090 Vienna, Austria. vesna.micic@univie.ac.at
authors.forename: Vesna
authors.initials: V
authors.lastname: Micić
authors.forename: Thilo
authors.initials: T
authors.lastname: Hofmann
mesh_terms: D000818:Animals; D049872:Bivalvia / Q000737:chemistry; D057927:Hydrophobic and Hydrophilic Interactions; D052638:Particulate Matter / Q000032:analysis; D010636:Phenols / Q000737:chemistry*; D045483:Rivers / Q000737:chemistry*; D014874:Water Pollutants, Chemical / Q000737:chemistry*; D014876:Water Pollution
chemical_list: D052638:Particulate Matter; D010636:Phenols; D014874:Water Pollutants, Chemical