气候变化领域集成服务门户(CCPortal): The missing ocean plastic sink: Gone with the rivers

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DOI	10.1126/science.abe0290
	The missing ocean plastic sink: Gone with the rivers
	Weiss L.; Ludwig W.; Heussner S.; Canals M.; Ghiglione J.-F.; Estournel C.; Constant M.; Kerhervé P.
发表日期	2021
ISSN	0036-8075
起始页码	107
结束页码	111
卷号	373 期号:6550
英文摘要	Plastic floating at the ocean surface, estimated at tens to hundreds of thousands of metric tons, represents only a small fraction of the estimated several million metric tons annually discharged by rivers. Such an imbalance promoted the search for a missing plastic sink that could explain the rapid removal of river-sourced plastics from the ocean surface. On the basis of an in-depth statistical reanalysis of updated data on microplastics—a size fraction for which both ocean and river sampling rely on equal techniques—we demonstrate that current river flux assessments are overestimated by two to three orders of magnitude. Accordingly, the average residence time of microplastics at the ocean surface rises from a few days to several years, strongly reducing the theoretical need for a missing sink. © 2021 American Association for the Advancement of Science. All rights reserved.
英文关键词	plastic; pollutant removal; residence time; risk assessment; river system; sea surface
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/245999
作者单位	CEFREM, UMR 5110 University of Perpignan, CNRS, Perpignan Cedex, F-66860, France; CRG Marine Geosciences, Department of Earth and Ocean Dynamics, University of Barcelona, Barcelona, E-08028, Spain; LOMIC, UMR 7621 Sorbonne University, CNRS, Banyuls-sur-Mer, F-66650, France; LEGOS, UMR 5566 University Toulouse III, CNRS, CNES, IRD, UPS, Toulouse, F-31400, France
推荐引用方式 GB/T 7714	Weiss L.,Ludwig W.,Heussner S.,et al. The missing ocean plastic sink: Gone with the rivers[J],2021,373(6550).
APA	Weiss L..,Ludwig W..,Heussner S..,Canals M..,Ghiglione J.-F..,...&Kerhervé P..(2021).The missing ocean plastic sink: Gone with the rivers.Science,373(6550).
MLA	Weiss L.,et al."The missing ocean plastic sink: Gone with the rivers".Science 373.6550(2021).