Priority substances in combined sewer overflows: Case study of the Paris sewer network

Autor: Régis Moilleron, Johnny Gasperi, Stéphane Garnaud, V. Rocher
Přispěvatelé: laboratoire Eau, Environnement et Systèmes Urbains (LEESU), AgroParisTech-Université Paris-Est Marne-la-Vallée (UPEM)-École des Ponts ParisTech (ENPC)-Université Paris-Est Créteil Val-de-Marne - Paris 12 (UPEC UP12), SIAAP - Direction du Développement et de la Prospective, SIAAP, Programme OPUR, Gasperi, Johnny
Jazyk: angličtina
Rok vydání: 2011
Předmět:
Zdroj: Water Science and Technology
Water Science and Technology, IWA Publishing, 2011, pp.6
ISSN: 0273-1223
Popis: Artcile publié. Water Science and Technology Volume 63, Issue 5, 2011, Pages 853-858; International audience; This study was undertaken to supply data on both priority pollutant (PP) occurrence and concentrations in combined sewer overflows (CSOs). A single rain event was studied on 13 sites within the Paris sewer network. For each sample, a total of 66 substances, including metals, polycyclic aromatic hydrocarbons (PAHs), pesticides, organotins, volatile organic compounds, chlorobenzenes, phthalates and alkylphenols were analyzed. Of the 66 compounds analyzed in all, 40 PPs including 12 priority hazardous substances were detected in CSOs. As expected, most metals were present in all samples, reflecting their ubiquitous nature. Chlorobenzenes and most pesticides were never quantified above the limit of quantification, while the majority of the other organic pollutants, except DEHP (median concentration: 22 μg.l-1), were found to lie in the μg.l-1 range. For the particular rain event studied, the pollutant loads discharged by CSOs were evaluated and then compared to pollutant loads conveyed by the Seine River. Under the hydraulic conditions considered and according to the estimations performed, this comparison suggests that CSOs are potentially significant local source of metals, PAHs and DEHP. Depending on the substance, the ratio between the CSO and Seine River loads varied from 0.5 to 26, underscoring the important local impact of CSOs at the scale of this storm for most pollutants. © IWA Publishing 2011.
Databáze: OpenAIRE