Examining magnetic susceptibility as a proxy for microplastic pollution in granulometric fractions of road dust: A case study in Warsaw, Poland

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dc.contributor.authorDytłow, Sylwia
dc.contributor.authorKida, Małgorzata
dc.contributor.authorZiembowicz, Sabina
dc.contributor.organizationInstitute of Geophysics, Polish Academy of Sciences, Poland
dc.contributor.organizationDepartment of Chemistry and Environmental Engineering, Rzeszow University of Technology, Poland
dc.date.accessioned2026-06-03T14:18:57Z
dc.date.available2026-06-03T14:18:57Z
dc.date.issued2025-05-05
dc.date.submitted2026-06-03T07:36:52Zen
dc.descriptionWyniki dotyczące mikroplastiku opublikowane w tym artykule to dane uzyskane w ramach projektu OPUS 27 pt.” Rola starzenia abiotycznego i biotycznego w usuwaniu mikroplastików w procesie koagulacji z wykorzystaniem naturalnych i odpadowych koagulantów” (2024/53/B/ST8/03010, NCN).
dc.description.abstractThe main objective was to assess the contamination of road dust (RD) with microplastics (MPs) and plasticizers and to investigate whether magnetic susceptibility (χ) can indicate MP pollution. The study employed laser direct infrared (LDIR) imaging with a quantum cascade laser (QCL), magnetic susceptibility measurement using the MFK1-FA Kappabridge, and gas chromatography–mass spectrometry (GC-MS). RD collected in Warsaw was divided into the fractions: 0.8 mm (1–0.8 mm), 0.6 mm (0.8–0.6 mm), 0.4 mm (0.6–0.4 mm), 0.2 mm (0.4–0.2 mm), and <0.2 mm. MP analysis revealed materials such as polypropylene and rubber, with the highest number of MPs (51,660 particles) in the <0.2 mm. RD was analyzed for bisphenol A and phthalic acid esters, with the highest concentrations of DEHP and DBP in the <0.2 mm fraction. χ were highest in the fraction <0.2. Strong correlations were found between χ and DEHP (0.78), DBP (0.96), and BPA (0.89) for WAW2 and between χ and MPs (0.97) for WAW4. Strong correlations were also observed for the 0.2 mm and <0.2 mm fractions between χ and DBP. The main conclusion is that χ strongly correlates with DEHP and DBP in the <0.2 mm fraction and with MPs in the 0.2 mm fraction. This study is novel due to the limited research on using χ as a screening method for MP pollution, making it a promising, cost-effective tool for pollution monitoring. The results could support the development of simplified monitoring tools, helping to assess human exposure risks and improve environmental management strategies.en_US
dc.description.sponsorshipThis research was funded in part by the National Science Centre (Poland), grant number 2024/53/B/ST8/03010. This research was funded in part by the National Science Centre (Poland), grant number 2021/43/D/ST10/00996. For the purpose of Open Access, the author has applied a CC-BY public copyright licence to any Author Accepted Manuscript (AAM) version arising from this submission. This work was supported by a subsidy from the Polish Ministry of Education and Science for the Institute of Geophysics, Polish Academy of Sciences. The authors declare the following financial interests/personal relationships, which may be considered as potential competing interests: Financed by the Minister of Science and Higher Education of the Republic of Poland within the program "Regional Excellence Initiative”.
dc.identifier.citationDytłow, S., Kida, M., & Ziembowicz, S. (2025). Examining magnetic susceptibility as a proxy for microplastic pollution in granulometric fractions of road dust: A case study in Warsaw, Poland. Journal of Hazardous Materials, 494, 138493.
dc.identifier.doi10.1016/j.jhazmat.2025.138493
dc.identifier.issn1873-3336
dc.identifier.urihttps://open.icm.edu.pl/handle/123456789/26834
dc.language.isoen_US
dc.publisherELSEVIER
dc.relation.ispartofseries494
dc.relation.urihttps://doi.org/10.25171/InstGeoph_PAS_IGData_321456326
dc.rightsUznanie autorstwa 4.0 Międzynarodoween
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.sourceJournal of Hazardous Materials
dc.subjectroad dusten_US
dc.subjectmicroplasticen_US
dc.subjecturban pollutionen_US
dc.subjectecological risken_US
dc.titleExamining magnetic susceptibility as a proxy for microplastic pollution in granulometric fractions of road dust: A case study in Warsaw, Polanden
dc.title.alternativeBadanie podatności magnetycznej jako wskaźnika zanieczyszczenia mikroplastikiem we frakcjach granulometrycznych pyłu drogowego: studium przypadku w Warszawie, Polskapl
dc.typearticle
dc.type.versionacceptedVersion
person.identifier.orcidZiembowicz, Sabina [0000-0002-8032-5168]
person.identifier.orcidDytłow, Sylwia [0000-0001-6968-6491]
person.identifier.orcidKida, Małgorzata [0000-0003-1744-4014]
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