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Byčenkiene, S.* ; Uogintė, I.* ; Davulienė, L.* ; Šemčuk, S.* ; Davtalab, M.* ; Dudoitis, V.* ; Kecorius, S. ; Lovrić, M.*

Comparative analysis of indoor and outdoor airborne microplastics in a school in Vilnius, Lithuania.

Environ. Technol. Innov. 40:104654 (2025)
Publ. Version/Full Text DOI
Open Access Gold
Creative Commons Lizenzvertrag
Airborne microplastics (MPs) poses a potential health risk, particularly in sensitive microenvironments such as schools, where children are subject to prolonged exposure durations. This study investigates airborne MPs indoors and outdoors at an urban school from December 2023 to April 2024, quantifying concentrations and characterizing morphology, polymer composition, and sources. Comparative analysis revealed distinct indoor-outdoor differences in chemical composition, source attribution, and associated risks. Indoors were dominated by polyester (33.0 %) and acrylates (31.1 %), while outdoor were primarily composed of polyethylene (48.6 %) and polypropylene (7.7 %). Source apportionment modeling identified textiles (31.0 %) and packaging (30.6 %) as the primary indoor contributors, whereas outdoor MPs were largely linked to packaging (46.3 %) and transport-related emissions (28.1 %). Morphologically, fibers predominted indoors (66 %), reflecting synthetic textile shedding, whereas fragments dominated outdoors reaching (up to 94 %). Statistically significant correlations between indoor and outdoor MPs profiles (Mantel r ≥ 0.5, p ≤ 0.001) underscored the influence of air exchange and infiltration processes. We present the first study in Northern Europe to characterize airborne microplastics in a school located near a high-traffic road, analyzing both outdoor and indoor air to determine particle morphology, chemical composition, dispersion patterns, and likely sources.
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Publication type Article: Journal article
Document type Scientific Article
Keywords Airborne Microplastic ; Indoor Exposure ; Inhalation Risk ; Northern Europe ; Source Apportionment; Nanoplastics; Fibers; Micro
ISSN (print) / ISBN 2352-1864
e-ISSN 2352-1864
Quellenangaben Volume: 40, Issue: , Pages: , Article Number: 104654 Supplement: ,
Publisher Elsevier
Publishing Place Amsterdam
Reviewing status Peer reviewed
Institute(s) Institute of Epidemiology (EPI)
Grants European Union's Horizon Europe Research and Innovation Programme