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The DOI matches its Crossref record; 14 of the 14 references it cites were found in a registry or an index.

Microplastics in freshwater sediment: A review on methods, occurrence, and sources

Yang, Ling, Zhang, Yulan, Kang, Shichang, Wang, Zhaoqing, Wu, Chenxi·2021·Science of The Total Environment

Abstract

There is a rising concern regarding the accumulation of microplastics in the aquatic ecosystems. However, compared to the marine environment, the occurrence, transport, and diffusion of microplastics in freshwater sediment are still open questions. This paper summarizes and compares the methods used in previous studies and provides suggestions for sampling and analysis of microplastics in freshwater sediment. This paper also reviews the findings on microplastics in freshwater sediment, including abundance, morphological characteristics, polymer types, sources, and factors affecting the abundance of microplastics in freshwater sediment. The results show that microplastics are ubiquitous in the investigated sediment of rivers, lakes, and reservoirs, with an abundance of 2-5 orders of magnitude across different regions. Low microplastics concentration was observed in the Ciwalengke River with an average abundance of 30.3 ± 15.9 items/kg. In particular, an extremely high abundance of microplastics was recorded in the urban recipient in Norway reaching 12,000-200,000 items/kg. Fibers with particle size less than 1 mm are the dominant shape for microplastics in freshwater sediment. In addition, the most frequently recorded colors and types are white/transparent, and PE/PS, respectively. Finally, we conclude that the consistency of morphological characteristics and components of microplastics between the beach or marine sediments and freshwater sediments may be an indicator of these interlinkages and source-pathways. Microplastics in freshwater sediment need further research and exploration to identify its spatial and temporal variations and driving force through further field sampling and implementation of standard and uniform analytical methodologies.

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Metadata

Authors
Yang, L., Zhang, Y., Kang, S., Wang, Z., & Wu, C.
Venue
Science of The Total Environment
Publisher
Elsevier BV
Published
2021-02
Volume
754
Pages
141948
ISSN
0048-9697 (ISSN-L)
OpenAlex
W3080179208
Cited by
508
References
14
FWCI
13.99
Type
journal article
Language
en
Open access
closed

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CoChat. (2026). Citation check: Microplastics in freshwater sediment: A review on methods, occurrence, and sources. https://app.cochat.ai/papers/10.1016/j.scitotenv.2020.141948
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Yang, L., Zhang, Y., Kang, S., Wang, Z., & Wu, C. (2021). Microplastics in freshwater sediment: A review on methods, occurrence, and sources. Science of The Total Environment. https://doi.org/10.1016/j.scitotenv.2020.141948

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