干旱区生态环境知识资源中心(Arid): Microplastic pollution in sediments of tropical shallow lakes

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DOI	10.1016/j.scitotenv.2022.158671
	Microplastic pollution in sediments of tropical shallow lakes
	Silva-Cavalcanti, Jacqueline Santos; Silva, Jayne Crisleny Pereira; de Andrade, Flavio Montenegro; Brito, Andrea Monteiro Santana Silva; da Costa, Monica Ferreira
通讯作者	Silva-Cavalcanti, JS
来源期刊	SCIENCE OF THE TOTAL ENVIRONMENT
ISSN	0048-9697
EISSN	1879-1026
出版年	2023
卷号	855
英文摘要	Forty-eight tropical shallow lakes (depth <= 4 m) across a climatic gradient were assessed for microplastic (MPs; <5 mm) pollution based on MPs concentrations in archive samples from lake shore sediments. The MPs were classified by type (fragments or fibres), colour (yellow, black, red, green, blue, white, and transparent), size (0.55 to 4.93 mm), and polymer (polyester, polyethylene, chlorinated polyethylene, and polyamide). Sediments were predominantly me-dium sand, and all samples (144) contained MPs, consisting of 24 % fragments (6.3 +/- 11.3 MPs center dot 300 g-1) and 76 % fibres (21.25 +/- 12.7 MPs center dot 300 g-1). The lake climate (humid, transitional, or semi-arid), type of surrounding land use (urban, semi-arid, or rural), and distance from the shoreline (0, 5 or 10 m) did not explain the differences in MPs concentrations, partially refuting the initial hypothesis. The only significant difference was between the sample medians for the number of fragments based on the region (H = 7.586; p = 0.0481). The number of fragments in the lakes in the humid region was greater than that in the semi-arid region (p < 0.05). Poor sanitation, sewage efflu-ents, and solid wastes reaching and accumulating in the lakes may be the primary and transversal conditioning factors for this small difference among diverse environments. Freshwater lakes are investigated in all continents, and the present study contributes to the first record of MPs in shallow lake sediments in eastern South America. The 48 shallow lakes assessed showed a relatively low concentration of MPs compared to other lake contaminants reported in the in-ternational literature. This information coincides with public policies issued, regarding the control and reduction of plastics and MPs in Brazil, and the study region.
英文关键词	Lake ecology FTIR Pollution Microplastics Freshwater sediment
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000864062900012
WOS关键词	SURFACE SEDIMENTS ; FRESH-WATER ; RIVER ; SEA ; ABUNDANCE ; CONTAMINATION ; PARTICLES ; INGESTION ; PLASTICS
WOS类目	Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/398467
推荐引用方式 GB/T 7714	Silva-Cavalcanti, Jacqueline Santos,Silva, Jayne Crisleny Pereira,de Andrade, Flavio Montenegro,et al. Microplastic pollution in sediments of tropical shallow lakes[J],2023,855.
APA	Silva-Cavalcanti, Jacqueline Santos,Silva, Jayne Crisleny Pereira,de Andrade, Flavio Montenegro,Brito, Andrea Monteiro Santana Silva,&da Costa, Monica Ferreira.(2023).Microplastic pollution in sediments of tropical shallow lakes.SCIENCE OF THE TOTAL ENVIRONMENT,855.
MLA	Silva-Cavalcanti, Jacqueline Santos,et al."Microplastic pollution in sediments of tropical shallow lakes".SCIENCE OF THE TOTAL ENVIRONMENT 855(2023).