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Microplastic accumulation in stormwater pond sediment

Description: Microplastics are an emerging pollutant which are a threat to aquatic ecosystems because of their resistance to degradation and their potential to carry and release contaminants. In urban watersheds, stormwater runoff is a major carrier of microplastics to downstream water bodies, which often drains into green infrastructure such as stormwater ponds (SWPs). The existing evidence indicates that stormwater ponds (SWPs) may be very effective at reducing the export loads of microplastics from urban areas. To investigate the controls on microplastic accumulation in stormwater pond sediment, we collected sediment samples from five SWPs with different LULC (commercial, industrial, and residential) in the City of Kitchener, Ontario. Microplastics in the sediment samples were extracted via preliminary separation, density separation and Fenton oxidation. The microplastic composition was then characterized using laser direct infrared imaging spectroscopy. Results and findings from the analysis of this data are reported in Controls on microplastic accumulation in stormwater pond sediment (pending submission, DOI: TBD).
Notes: This dataset will be cited by a manuscript in preparation.
Authors: Nguyen, Thu Hang; University of Waterloo; ORCID iD 0000-0002-6806-5842
Rezanezhad, Fereidoun; University of Waterloo; ORCID iD 0000-0002-9608-8005
Slowinski, Stephanie; University of Waterloo; ORCID iD 0000-0001-5090-441X
Reshadi, Mir Amir Mohammad; University of Waterloo; ORCID iD 0000-0001-7975-5083
Van Cappellen, Philippe; University of Waterloo; ORCID iD 0000-0001-5476-0820
Keywords: microplastic
stormwater pond
microplastic extraction
Field of Research: 
Earth and related environmental sciences
Environmental geochemistry
Publication Date: 2025-06-01
Publisher: Federated Research Data Repository / dépôt fédéré de données de recherche
Funder: Natural Sciences and Engineering Research Council of Canada (NSERC); ALLRP 558435 – 20
Canada Excellence Research Chairs
Global Water Futures Program (GWF)
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Access to this dataset is subject to the following terms:
Creative Commons Attribution 4.0 International (CC BY 4.0)
Nguyen, T., Rezanezhad, F., Slowinski, S., Reshadi, M., Van Cappellen, P. (2025). Microplastic accumulation in stormwater pond sediment. Federated Research Data Repository.