Impact of the Covid-19 pandemic on microplastic abundance along the River Thames

Article

Devereux, R., Ayati, B., Westhead, E. K., Jayaratne, R. and Newport, D. 2023. Impact of the Covid-19 pandemic on microplastic abundance along the River Thames. Marine Pollution Bulletin. 189 (Art.114763). https://doi.org/10.1016/j.marpolbul.2023.114763
AuthorsDevereux, R., Ayati, B., Westhead, E. K., Jayaratne, R. and Newport, D.
Abstract

In April 2020, the Covid-19 pandemic changed human behaviour worldwide, creating an increased demand for plastic, especially single-use plastic in the form of personal protective equipment. The pandemic also provided a unique situation for plastic pollution studies, especially microplastic studies. This study looks at the impact of the Covid-19 pandemic and three national lockdowns on microplastic abundance at five sites along the river Thames, UK, compared to pre-Covid-19 levels. This study took place from May 2019–May 2021, with 3-L water samples collected monthly from each site starting at Teddington and ending at Southend-on-Sea. A total of 4480 pieces, the majority of fibres (82.1 %), were counted using light microscopy. Lockdown 2 (November 2020) had the highest average microplastic total (27.1 L⁻¹). A total of 691 pieces were identified via Fourier Transform Infrared Spectroscopy (FTIR). Polyvinyl chloride (36.19 %) made up the most microplastics identified. This study documents changes in microplastic abundance before, during and after the Covid-19 pandemic, an unprecedented event, as well as documenting microplastic abundance along the river Thames from 2019 to 2021.

KeywordsRiver Thames; Covid-19; Microplastics
JournalMarine Pollution Bulletin
Journal citation189 (Art.114763)
ISSN0025-326X
Year2023
PublisherElsevier
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Anyone
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Digital Object Identifier (DOI)https://doi.org/10.1016/j.marpolbul.2023.114763
Publication dates
Online24 Feb 2023
Publication process dates
Accepted18 Feb 2023
Deposited02 Mar 2023
Copyright holder© 2023 The Authors
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Zainorabidin, Adnan, Wijeyesekera, D.Chitral and Jayaratne, R. 2010. Fabric of peat soils using image analysis.
Hydraulic roughness – links between Manning’s coefficient, Nikuradse’s equivalent sand roughness and bed grain size
Marriott, M. and Jayaratne, R. 2010. Hydraulic roughness – links between Manning’s coefficient, Nikuradse’s equivalent sand roughness and bed grain size. Advances in Computing and Technology 2010. University of East London, London London University of East London, School of Architecture Computing and Engineering. pp. 27-32