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Priority Organic Pollutants in the Urban Water Cycle (Toulouse, France)

Sablayrolles, Caroline and Breton, Audrey and Vialle, Claire and Vignoles, Christian and Montréjaud-Vignoles, Mireille Priority Organic Pollutants in the Urban Water Cycle (Toulouse, France). (2011) Water Science and Technology, vol. 64 (n° 3). pp. 541-556. ISSN 0273-1223

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Abstract

Application of the European Water Framework Directive requires Member States to have better understanding of the quality of surface waters in order to improve knowledge of priority pollutants. Xenobiotics in urban receiving waters are an emerging concern. This study proposes a screening campaign of nine molecular species of xenobiotics in a separated sewer system. Five sites were investigated over one year in Toulouse (France) using quantitative monitoring. For each sample, polycyclic aromatic hydrocarbons (PAHs), polychlorinated biphenyls (PCBs), nonylphenols (NP1EO), phthalates (DEHP), laurylalkylbenzene sulfonates (LAS), methyl tert-butylether (MTBE), total hydrocarbons (TH), estradiol (E2) and ethinylestradiol (EE2) were analysed. Ground, rain and roof collected water concentrations are similar to treated wastewater levels. Run-off water was the most polluted of the five types investigated, discharged into the aquatic environment. The wastewater treatment plant reduced xenobiotic concentrations by 66% before discharge into the environment. Regarding Environmental Quality Standards (EQS), observed concentrations in waters were in compliance with standards. The results show that xenobiotic concentrations are variable over time and space in all urban water compartments.

Item Type:Article
Additional Information:Thanks to IWA Publishing editor: http://www.iwaponline.com/
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution: Université de Toulouse > Institut National Polytechnique de Toulouse - INPT
French research institutions > Institut National de la Recherche Agronomique - INRA
Other partners > Veolia Environnement (FRANCE)
Laboratory name:
Laboratoire de Chimie Agro-Industrielle - LCA (Toulouse, France)
Laboratoire de Chimie Agro-Industrielle - LCA (Toulouse, France) - Centre d'Application et de Traitement des Agroressources - CATAR-CRITT Agroressources
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Deposited By: Claire VIALLE

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