alexa EU-wide survey of polar organic persistent pollutants in European river waters.
Chemistry

Chemistry

Chemical Sciences Journal

Author(s): Loos R, Gawlik BM, Locoro G, Rimaviciute E, Contini S,

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Abstract This study provides the first EU-wide reconnaissance of the occurrence of polar organic persistent pollutants in European river waters. More than 100 individual water samples from over 100 European rivers from 27 European Countries were analysed for 35 selected compounds, comprising pharmaceuticals, pesticides, PFOS, PFOA, benzotriazoles, hormones, and endocrine disrupters. Around 40 laboratories participated in this sampling exercise. The most frequently and at the highest concentration levels detected compounds were benzotriazole, caffeine, carbamazepine, tolyltriazole, and nonylphenoxy acetic acid (NPE(1)C). Only about 10\% of the river water samples analysed could be classified as "very clean" in terms of chemical pollution. The rivers responsible for the major aqueous emissions of PFOS and PFOA from the European Continent could be identified. For the target compounds chosen, we are proposing "indicative warning levels" in surface waters, which are (for most compounds) close to the 90th percentile of all water samples analysed. This article was published in Environ Pollut and referenced in Chemical Sciences Journal

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