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DOI	10.1016/j.scitotenv.2020.141948
	Microplastics in freshwater sediment: A review on methods, occurrence, and sources
	Yang, Ling; Zhang, Yulan; Kang, Shichang; Wang, Zhaoqing; Wu, Chenxi
通讯作者	Zhang, YL (通讯作者)，Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China.
发表日期	2021
ISSN	0048-9697
EISSN	1879-1026
卷号	754
英文摘要	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. (C) 2020 Elsevier B.V. All rights reserved.
关键词	3 GORGES RESERVOIR ENVIRONMENTAL-SAMPLES SURFACE SEDIMENTS MONITORING MICROPLASTICS IDENTIFICATION METHODS MARINE-ENVIRONMENT BEACH SEDIMENTS PLASTIC DEBRIS URBAN RIVER MU-M
英文关键词	Microplastics; Sediment; Aquatic environment; Polymer composition
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
WOS记录号	WOS:000593987700005
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/254281
作者单位	[Yang, Ling; Zhang, Yulan; Kang, Shichang] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, State Key Lab Cryospher Sci, Lanzhou 730000, Peoples R China; [Zhang, Yulan; Kang, Shichang] Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China; [Yang, Ling; Kang, Shichang] Univ Chinese Acad Sci, Beijing 100049, Peoples R China; [Wang, Zhaoqing] Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou 730000, Peoples R China; [Wu, Chenxi] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
推荐引用方式 GB/T 7714	Yang, Ling,Zhang, Yulan,Kang, Shichang,et al. Microplastics in freshwater sediment: A review on methods, occurrence, and sources[J]. 中国科学院西北生态环境资源研究院,2021,754.
APA	Yang, Ling,Zhang, Yulan,Kang, Shichang,Wang, Zhaoqing,&Wu, Chenxi.(2021).Microplastics in freshwater sediment: A review on methods, occurrence, and sources.SCIENCE OF THE TOTAL ENVIRONMENT,754.
MLA	Yang, Ling,et al."Microplastics in freshwater sediment: A review on methods, occurrence, and sources".SCIENCE OF THE TOTAL ENVIRONMENT 754(2021).