Show simple item record

dc.contributor.authorMengistu, Demmelash
dc.contributor.authorHeistad, Arve
dc.contributor.authorCoutris, Claire
dc.identifier.citationMengistu, D., Heistad, A., & Coutris, C. (2021). Tire wear particles concentrations in gully pot sediments. Science of the Total Environment, 769, 1-8.en_US
dc.description.abstractWhile tire wear and tear is known to be a major source of microplastics in the environment, its monitoring is still hampered by the lack of analytical methods able to provide concentrations in environmental matrices. Tirewear particles (TWP) present in road runoff enter the drainage system through gully pots, built to prevent sediment deposition in the drainage system, and eventually protect downstream receiving waters. The aim of this study was to detect and quantify TWP in gully pot sediments, by using a novel method combining Simultaneous Thermal Analysis (STA), Fourier Transform Infrared (FTIR) spectroscopy and Parallel Factor Analysis (PARAFAC). The method was applied to samples from five sites in Southern Norway, characterized by different traffic densities and patterns. The method involved no sample pretreatment, the whole sediment samplewas submitted to thermal decomposition in STA, and gases generated during pyrolysis were continuously transferred to FTIR. The FTIR data were arranged in a trilinearmulti-way dataset (samples × IR spectra wavenumber × pyrolysis temperature) and then analyzed by PARAFAC. The results showed that TWP concentrations in gully pots varied greatly across sites, ranging frombelow1 mgTWP/g sediment in streetswith the lowest traffic densities, to 150 mgTWP/g sediment at themost trafficked study site. The results also indicated that other traffic conditions, such as driving patterns influence TWP concentrations. Finally, by enabling quantification of TWP in gully pot sediments, the approach presented here supports environmental monitoring of TWP and safe disposal of gully pot sediments, which is critical for environmental pollution management.en_US
dc.publisherElsevier B.V.en_US
dc.rightsNavngivelse 4.0 Internasjonal*
dc.titleTire wear particles concentrations in gully pot sedimentsen_US
dc.typePeer revieweden_US
dc.typeJournal articleen_US
dc.rights.holder© 2021 The Author(s)en_US
dc.source.journalScience of the Total Environmenten_US
dc.relation.projectNorges forskningsråd: 194051en_US
dc.relation.projectNorges forskningsråd: 272946en_US

Files in this item


This item appears in the following Collection(s)

Show simple item record

Navngivelse 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse 4.0 Internasjonal