It is snowing microplastics in Western Siberia.

Autor: Frank YA; Research Centre 'Microplastic Siberia', Tomsk State University, Lenina Prospect 36, Tomsk, 634050, Russia. Electronic address: yulia.a.frank@gmail.com., Tatsii D; Department of Meteorology and Geophysics, University of Vienna, Universitätsring 1, 1010, Vienna, Austria., Rednikin AR; Research Centre 'Microplastic Siberia', Tomsk State University, Lenina Prospect 36, Tomsk, 634050, Russia., Plach A; Department of Meteorology and Geophysics, University of Vienna, Universitätsring 1, 1010, Vienna, Austria., Rakhmatullina SN; Research Centre 'Microplastic Siberia', Tomsk State University, Lenina Prospect 36, Tomsk, 634050, Russia., Vorobiev DS; Research Centre 'Microplastic Siberia', Tomsk State University, Lenina Prospect 36, Tomsk, 634050, Russia., Stohl A; Department of Meteorology and Geophysics, University of Vienna, Universitätsring 1, 1010, Vienna, Austria.
Jazyk: angličtina
Zdroj: Environmental pollution (Barking, Essex : 1987) [Environ Pollut] 2024 Nov 12; Vol. 364 (Pt 1), pp. 125293. Date of Electronic Publication: 2024 Nov 12.
DOI: 10.1016/j.envpol.2024.125293
Abstrakt: The atmosphere is an important transport medium for polymeric anthropogenic particles such as microplastics (MPs). The analysis of particles deposited on the snowpack enables monitoring the abundance and transport of MPs and semi-synthetic fibers. In the current study, the abundance of MPs and man-made textile fibers in deposited snow in Western Siberia, Russia, was investigated in a large area ranging from the Altai Mountains (52°01″N) to the Arctic Circle (66°30″N). Rayon fibers accounted for 44 % of all detected particles, while the remaining 66 % were MPs made of PET, PA, PC, PP and other plastics. The highest number of MPs and fibers per unit area was 2817 ± 915 items m -2 with an estimated daily deposition rate of 25.8 items m -2 d -1 . The maximum calculated mass particle load was 4444 ± 1530 mg m -2 or 34.9 ± 12 mg L -1 of melted snow. Particle concentrations in snow were generally higher in the southern parts of Western Siberia but did not significantly correlate with population density. The Lagrangian dispersion model FLEXPART was used to estimate the geographical patterns of potential sources of the fibers detected in the snow in Western Siberia. Our analysis shows that particles can reach the sampling sites via both short-range and long-range atmospheric transport, including the possibility of cross-border transport for the smaller particle sizes.
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 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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