Title: Polar Water-Soluble Contaminants in the Liquid Water Phase by SPE-LC-MS2 Analysis
Authors: LOOS RobertLOCORO GiovanniCONTINI Serafino
Publisher: ICPDR International Commission for the Protection of the Danube
Publication Year: 2008
JRC N°: JRC50147
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC50147
Type: Articles in periodicals and books
Abstract: Polar water-soluble organic contaminants were analysed in the dissolved (liquid) water phase by solid-phase extraction (SPE) followed by triple-quadrupole LC-MS2 analysis. The extraction volume for the River Danube and tributary samples was 400 mL. In total, 34 different compounds were analysed. The analysis included 6 priority compounds of the WFD (atrazine, simazine, isoproturon, diuron, nonylphenol, and octylphenol). All tributary water samples (23 close to the Danube and 28 more upstream in the individual Member States) and 53 River Danube water samples along the river were analysed by the JRC-IES. Focus was given on pharmaceutical compounds (such as ibuprofen, diclofenac, sulfamethoxazole, carbamazepine), pesticides and their degradation products (e.g. bentazone, 2,4-D, mecoprop, atrazine, terbutylazine, desethylterbutylazine), perfluorinated acids (PFOS; PFOA), and endocrine disrupting compounds (such as nonylphenol, NPE1C, bisphenol A, estrone). The analytical results for the polar compounds analysed (pharmaceuticals, pesticides, perfluorinated acids (PFOS/A), and phenolic endocrine disrupting compounds) are in good agreement to other big European rivers such as the Rivers Rhine, Elbe or Po. The levels for the priority compounds of the WFD (atrazine, simazine, isoproturon, diuron) were in the Danube and the tributaries in all cases, except for nonylphenol, below the EQS values. The nonylphenol EQS of 0.3 mg/L was exceed in the Timok (JDS66), and in the Arges Rivers (JDS84). For the other ¿emerging¿ compounds analysed no limit values in surface waters exist. The most relevant polar compounds identified in the Danube river basin in terms of frequency of detection, persistency, and concentrations were benzotriazoles, 2,4-D, PFOA, and carbamazepine.
JRC Directorate:Sustainable Resources

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