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Contribution of car, truck, bus and subway wash station discharges to stormwater pollution (Toulouse, France)

Breton, Audrey and Vialle, Claire and Montréjaud-Vignoles, Mireille and Cecutti, Christine and Vignoles, Christian and Sablayrolles, Caroline Contribution of car, truck, bus and subway wash station discharges to stormwater pollution (Toulouse, France). (2010) Fresenius environmental bulletin, vol. 19 (n° 9). pp. 1954-1962. ISSN 1018-4619

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Abstract

The European Water Framework Directive requires the monitoring of priority pollutants entering surface waters. This includes notably the stormwater network. In this study, the contribution of discharges from wash stations to pollution of the stormwater network was investigated. Six wash stations discharging wastewater into the stormwater network were selected: (i) one trucks wash station, (ii) two self-service stations for cars and motorcycles, (iii) two bus wash stations, (iv) one subway wash station. Classical parameters (conductivity, pH, turbidity, chemical oxygen demand, total nitrogen, total phosphorus, suspended solid) and organic micropollutants (Polycyclic Aromatic Hydrocarbons (PAHs), Total Hydrocarbons (TH) and Methylterbutylether (MTBE)) were checked and measured. Concentrations were compared with limit values from Greater Toulouse decontamination service regulations for the discharge licenses of carwashes, and under the French decree for discharges into the natural environment and with the proposed directive from the European Parliament and the Council, dealing with environmental quality standards. The result showed a decrease of pollution downstream of the pre-treatments for subway wash stations but not for bus wash stations. According to the directives, the pre-treatment processes are not sufficient to justify a discharge into the stormwater network.

Item Type:Article
Additional Information:This publication is available at http://www.psp-parlar.de/
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:
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Deposited By: Claire VIALLE

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