Evaluation des sources de polluants susceptibles d'impacter les ouvrages de gestion des eaux pluviales – Diagnostic exhaustif à l'échelle du territoire nantais

Melissa Delamain 1, * Fabrice Rodriguez 1 Erwan Bocher 2 C Puizillout-Lieppe 3 Gwendall Petit 4 N Fortin 5 J-M Rouaud 1
* Corresponding author
2 Lab-STICC_CNRS_CID_DECIDE
Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance
4 Lab-STICC_UBS_CID_DECIDE
Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance (UMR 3192), Lab-STICC - Laboratoire des sciences et techniques de l'information, de la communication et de la connaissance
Abstract : To offset the effects of soil sealing and to deal with stormwater management issue s , cities have adopted BMPs (Best Management Practices) for twenty years . Many facilities exist on urban areas and h ave proved to be efficient on a hydrological point of view, but questions remain about pollutants. Under the Matriochkas project, w h ich focuses on performances of stormwater management facilities in terms of retention of pollutants, an inventory on retention and infiltration basins and swales is conducted throughout the Nantes metropole territory. An exhaustive diagnosis of sources of pollutants is carried out on the facilities identifi ed in this inventory, using a methodology based on spatial analysis of geographic data. More specifically, contributive area of facilities is identified by an automatic method based on drainage networks. The description of these contributive areas in terms of geographic data (land use, human activities such as road traffic , and practices ), and literature data on emissions of pollutants in urban areas, makes it possible to estimate potential pollutant loads which discharge into these facilities.
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Melissa Delamain, Fabrice Rodriguez, Erwan Bocher, C Puizillout-Lieppe, Gwendall Petit, et al.. Evaluation des sources de polluants susceptibles d'impacter les ouvrages de gestion des eaux pluviales – Diagnostic exhaustif à l'échelle du territoire nantais. 9ème Conférence internationale NOVATECH, INSA Lyon, Jun 2016, Lyon, France. ⟨halshs-01343761⟩

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