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Outdoor atmospheric microplastics within the Humber region (United Kingdom): Quantification and chemical characterisation of deposited particles present

Jenner, Lauren; Sadofsky, Laura; Danopoulos, Evan; Chapman, Emma; White, David; Jenkins, Rebecca; Rotchell, Jeanette M.

Authors

Lauren Jenner

Evan Danopoulos

Emma Chapman

David White

Rebecca Jenkins



Abstract

Atmospheric microplastics (MPs) have been consistently captured within air samples on a global scale. Locations with high human activity are reported to have high MP levels. An urban sampling site in the Humber region (U.K.) has been sampled over a 13-month period, providing a seasonal variation profile of MP levels, size, shape, and polymer types that humans are exposed to. Mean MP levels, measured using passive fallout into a container, were 3055 ± 5072 MP m−2 day−1 (1164 median). An increase in levels with a decrease in MP size was observed, consisting of mainly film-shaped MPs (67%) that were polyethylene (31%) and nylon (28%) polymer types. No relationship between rainfall and MP fallout levels was observed. In parallel, MPs within five urban-ised locations relevant to human exposure were characterised over a 2-week period. An overall MP mean (and standard deviation) of 1500 ± 1279 was observed (1012 median), from which petroleum resin accounted for 32% of MP polymer type, with a higher prevalence within industrial and roadside zones. These comprised mainly fragment (52%) and film (42%) shapes, and the MPs levels increased with decreasing particle size. The results provide novel information on characterising polymer levels and types, and can inform cellular toxicity studies, investigating the consequences of human MP exposure.

Citation

Jenner, L., Sadofsky, L., Danopoulos, E., Chapman, E., White, D., Jenkins, R., & Rotchell, J. M. (2022). Outdoor atmospheric microplastics within the Humber region (United Kingdom): Quantification and chemical characterisation of deposited particles present. Atmosphere, 13(2), Article 265. https://doi.org/10.3390/atmos13020265

Journal Article Type Article
Acceptance Date Feb 2, 2022
Online Publication Date Feb 4, 2022
Publication Date 2022-02
Deposit Date Feb 2, 2022
Publicly Available Date Oct 27, 2022
Journal Atmosphere
Electronic ISSN 2073-4433
Publisher MDPI
Peer Reviewed Peer Reviewed
Volume 13
Issue 2
Article Number 265
DOI https://doi.org/10.3390/atmos13020265
Keywords Microplastic; Polymer; Deposition; Synthetic; Outdoor; Air; FTIR; Urban
Public URL https://hull-repository.worktribe.com/output/3919825

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Copyright Statement
Copyright: © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/license s/by/4.0/).



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