Comparison of microplastic type, size, and composition in atmospheric and foliage samples in an urban scenario.

Autor: Falakdin P; Department of Science and High Technology, University of Insubria, Via Valleggio 11, 22100, Como, Italy., Lopez-Rosales A; Group of Applied Analytical Chemistry. Instituto Universitario de Medio Ambiente, Universidade da Coruña, Campus da Zapateira s/n, E-15071, A Coruña, Spain., Andrade J; Group of Applied Analytical Chemistry. Instituto Universitario de Medio Ambiente, Universidade da Coruña, Campus da Zapateira s/n, E-15071, A Coruña, Spain., Terzaghi E; Department of Science and High Technology, University of Insubria, Via Valleggio 11, 22100, Como, Italy., Di Guardo A; Department of Science and High Technology, University of Insubria, Via Valleggio 11, 22100, Como, Italy., Muniategui-Lorenzo S; Group of Applied Analytical Chemistry. Instituto Universitario de Medio Ambiente, Universidade da Coruña, Campus da Zapateira s/n, E-15071, A Coruña, Spain. Electronic address: soledad.muniategui@udc.es.
Jazyk: angličtina
Zdroj: Environmental pollution (Barking, Essex : 1987) [Environ Pollut] 2024 May 15; Vol. 349, pp. 123911. Date of Electronic Publication: 2024 Apr 09.
DOI: 10.1016/j.envpol.2024.123911
Abstrakt: The rising trend of plastic production in last years and the inadequate disposal of related waste has raised concerns regarding microplastic-related environmental issues. Microplastic particles disperse by means of transport and deposition processes to different ecosystems and enter food chains. In this paper, atmospheric deposition and foliage samples of two species (i.e., Hedera helix and Photinia glabra) were collected and analysed for the quantity and identity of microplastics (MPs). A preliminary methodology to treat foliage samples and subsequently identify MPs using a quantum cascade laser IR spectrophotometer is presented. The treatment of airborne samples involved filtration, mild digestion, concentration, and transfer onto reflective slides whereas that for foliage involved washing, concentration, and transference of putative MPs onto reflective slides. Fibers and fragments were differentiated according to their physical features (size, width, height, etc.) and calculating derived characteristics (namely, circularity and solidity). The preliminary results obtained suggest a good agreement between atmospheric-deposited and foliage-retained MPs, showing the capability of leaves to act as passive samplers for environmental monitoring.
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 The Authors. Published by Elsevier Ltd.. All rights reserved.)
Databáze: MEDLINE
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