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Organic micropollutants in stormwater runoff from three urban catchments in Sweden: [Micropolluants organiques dans les eaux de ruissellement de trois bassins versants urbains en Suède]
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Architecture and Water.ORCID iD: 0000-0002-3518-1273
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Architecture and Water.ORCID iD: 0000-0002-4732-7348
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Architecture and Water.
Luleå University of Technology, Department of Civil, Environmental and Natural Resources Engineering, Architecture and Water.ORCID iD: 0000-0001-8321-1847
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2023 (English)Conference paper, Poster (with or without abstract) (Refereed)
Abstract [en]

Urban runoff is recognised to contribute to the deterioration of surface water quality and previous research pointed out a need to focus on organic micropollutants. This study presents measurements of stormwater quality with respect to polycyclic aromatic hydrocarbons, oil, phthalates, alkylphenols, organotin compounds (OTC), polyfluoroalkyl substances (PFAS) and polychlorinated biphenyls (PCBs) from three Swedish catchments (two industrial parks and one parking lot). The results showed that all the studied groups of organic micropollutants except for PFAS and PCBs were present in the stormwater. The oil levels were similar in base flow compared to runoff, while other substances had higher concentrations during runoff events compared to base flow. Among the analysed phthalates, DEHP and DINP were those that were detected in concentrations above the analytical reporting limits, of which DINP was the most abundant, with a maximum concentration of 140 μg/L. Among the OTCs, monobutyltin was the most abundant, which was detected in all samples and present in the highest concentrations (up to 270 ng/L). Regarding the different types of runoff studied (rain, snowmelt and rain on snow) no clear differences could be identified by the available body of data.

Abstract [fr]

Il est reconnu que le ruissellement urbain contribue à la détérioration de la qualité des eaux de surface et des recherches antérieures ont souligné la nécessité de se concentrer sur les micropolluants organiques. Cette étude présente des mesures de la qualité des eaux pluviales en ce qui concerne les hydrocarbures aromatiques polycycliques, les huiles, les phtalates, les alkylphénols, les composés organostanniques (OTC), les substances polyfluoroalkyles (PFAS) et les polychlorobiphényles (PCB) de trois bassins versants suédois (deux parcs industriels et un parking). Les résultats ont montré que tous les groupes de micropolluants organiques étudiés, à l'exception des PFAS et des PCB, étaient présents dans les eaux pluviales. Les niveaux d'huile étaient similaires dans le flux de base par rapport au ruissellement, tandis que d'autres substances avaient des concentrations plus élevées pendant les événements de ruissellement par rapport au flux de base. Parmi les phtalates analysés, le DEHP et le DINP sont ceux qui ont été détectés à des concentrations supérieures aux limites de déclaration analytique, le DINP étant le plus abondant. Parmi les OTCs, le monobutylétain était le plus abondant, il a été détecté dans tous les échantillons et présent dans les concentrations les plus élevées. En ce qui concerne les différents types de ruissellement étudiés (pluie, fonte des neiges et pluie sur la neige), aucune différence claire n'a pu être identifiée par l'ensemble des données disponibles.

Place, publisher, year, edition, pages
2023. p. 1-4
Keywords [en]
Diffuse pollution, Snowmelt quality, Stormwater quality, Urban runoff
National Category
Water Engineering
Research subject
Urban Water Engineering; Centre - Centre for Stormwater Management (DRIZZLE)
Identifiers
URN: urn:nbn:se:ltu:diva-103823OAI: oai:DiVA.org:ltu-103823DiVA, id: diva2:1829308
Conference
11th Novatech international conference, Lyon, France, July 3-7, 2023
Funder
Swedish WaterVinnova, 2016-05176Swedish Research Council Formas, 942-2016-73Available from: 2024-01-18 Created: 2024-01-18 Last updated: 2024-03-25Bibliographically approved

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Müller, AlexandraÖsterlund, HeléneNordqvist, KerstinLindfors, SarahViklander, Maria

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