Fine micro- and nanoplastics concentrations in particulate matter samples from the high alpine site Sonnblick, Austria.

Autor: Kau D; Institute of Chemical Technologies and Analytics, TU Wien, Getreidemarkt 9, 1060, Vienna, Austria. Electronic address: daniela.kau@tuwien.ac.at., Materić D; Institute of Marine and Atmospheric Research Utrecht, Utrecht University, Princetonplein 5, 3584CC, Utrecht, the Netherlands; Department for Analytical Chemistry, Helmoltz Centre for Environmental Research - UFZ, Permoserstraße 15, 04318, Leipzig, Germany. Electronic address: dusan.materic@ufz.de., Holzinger R; Institute of Marine and Atmospheric Research Utrecht, Utrecht University, Princetonplein 5, 3584CC, Utrecht, the Netherlands., Baumann-Stanzer K; Geosphere Austria, Hohe Warte 38, 1190, Vienna, Austria., Schauer G; Geosphere Austria, Hohe Warte 38, 1190, Vienna, Austria., Kasper-Giebl A; Institute of Chemical Technologies and Analytics, TU Wien, Getreidemarkt 9, 1060, Vienna, Austria.
Jazyk: angličtina
Zdroj: Chemosphere [Chemosphere] 2024 Mar; Vol. 352, pp. 141410. Date of Electronic Publication: 2024 Feb 10.
DOI: 10.1016/j.chemosphere.2024.141410
Abstrakt: We report atmospheric fine micro- and nanoplastics concentrations from particulate matter (PM) samples of two size fractions (PM 10 , fine micro- and nanoplastics, and PM 1 , nanoplastics), which were collected at the remote high alpine station Sonnblick Observatory, Austria. Active sampling was performed from June 2021 until April 2022. Analysis was done using TD-PTR-MS to detect 6 different plastic types. Polyethylene terephthalate (PET), polyethylene (PE) and polypropylene/polypropylene carbonate (PP/PPC) were found to be the dominating species. PET was detected in almost all samples, while the other plastic types occurred more episodically. Furthermore, polyvinyl chloride (PVC), polystyrene (PS) and tire wear particles were detected in single samples. Considering the three main plastic types, average plastics concentrations were 35 and 21 ng m - ³ with maximum concentrations of 165 and 113 ng m - ³ for PM 10 and PM 1 , respectively. Average polymer concentrations were higher in the summer/fall period than in winter/spring. In summer/fall, PM 10 plastics concentrations were higher by a factor of 2 compared to PM 1 , while concentrations of both size classes were comparable in the winter/spring period. This suggests that in the colder season plastic particles arriving at the Eastern Alpine crests are mainly present as nanoplastics. The contribution of micro- and nanoplastics to organic matter at the remote site was found to be comparable to data determined at an urban site. We found significant correlations between the PET concentration and tracers originating from anthropogenic activities such as elemental carbon, nitrate, ammonium, and sulphate as well as organic carbon and arabitol.
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
Externí odkaz: