Title: Occurrence of Polar Organic Contaminants in the Dissolved Water Phase of the Danube River and Its Major Tributaries Using SPE-LC-MS2 Analysis
Authors: LOOS RobertLOCORO GiovanniCONTINI Serafino
Citation: WATER RESEARCH vol. 44 no. 7 p. 2325-2335
Publisher: PERGAMON-ELSEVIER SCIENCE LTD
Publication Year: 2010
JRC N°: JRC52582
ISSN: 0043-1354
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC52582
DOI: 10.1016/j.watres.2009.12.035
Type: Articles in Journals
Abstract: Polar water-soluble organic contaminants were analysed in the dissolved liquid water phase of river water samples from the Danube River and its major tributaries (within the Joint Danube Survey 2). Analyses were performed by solid-phase extraction (SPE) followed by triple-quadrupole liquid chromatography mass spectrometry (LC-MS2). In total, 34 different polar organic compounds were screened. 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 (nonylphenol, NPE1C, bisphenol A, estrone). The most relevant polar compounds identified in the Danube river basin in terms of frequency of detection, persistency, and concentration levels were 1H-benzotriazole (median concentration 185 ng/L), caffeine (87 ng/L), tolyltriazole (73 ng/L), nonylphenoxy acetic acid (49 ng/L), carbamazepine (33 ng/L), 4-nitrophenol (29 ng/L), 2,4-dinitrophenol (19 ng/L), PFOA (17 ng/L), sulfamethoxazole (16 ng/L), desethylatrazine (11 ng/L), and 2,4-D (10 ng/L). The highest contamination levels were found in the area around Budapest and in the tributary rivers Arges (Romania), Timok (Bulgaria), Rusenski Lom (Bulgaria), and Velika Morava (Serbia).
JRC Institute:Institute for Environment and Sustainability

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