Sustainability Research Institute (SRI), University of East London, Knowledge Dock, Docklands Campus, 4-6 University Way, London E16 2RD, United Kingdom of Great Britain and Northern Ireland.
Sustainability Research Institute (SRI), University of East London, Knowledge Dock, Docklands Campus, 4-6 University Way, London E16 2RD, United Kingdom of Great Britain and Northern Ireland.
Mar Pollut Bull. 2023 Apr;189:114763. doi: 10.1016/j.marpolbul.2023.114763. Epub 2023 Feb 24.
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). 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.
2020 年 4 月，新冠疫情改变了全球人类的行为方式，导致对塑料的需求增加，尤其是以个人防护装备形式出现的一次性塑料。这场疫情也为塑料污染研究，特别是微塑料研究提供了一个独特的机会。本研究通过比较英国泰晤士河五个地点在新冠疫情前的水平，考察了新冠疫情和三次全国封锁对微塑料丰度的影响。本研究于 2019 年 5 月至 2021 年 5 月进行，每月从特丁顿到绍森德的每个地点采集 3 升水样。使用光学显微镜共计数了 4480 个碎片，其中大部分为纤维（82.1%）。通过傅里叶变换红外光谱（FTIR）共鉴定了 691 个碎片。聚氯乙烯（36.19%）占鉴定出的微塑料的比例最高。本研究记录了新冠疫情前、期间和之后微塑料丰度的变化，这是一个前所未有的事件，同时还记录了 2019 年至 2021 年泰晤士河的微塑料丰度。
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