Reaching out across the Web .. ...分享 Zuojun Yu, physical oceanographer, freelance English editor


科技英语写作基础(系列):阅读Plastic Debris

已有 1167 次阅读 2019-10-26 05:57 |个人分类:Scientific Writing|系统分类:教学心得| 科技英语写作

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Seine Plastic Debris Transport Tenfolded During Increased River Discharge

Rivers transport land-based plastic waste into the ocean


Current efforts to quantify riverine plastic emission come with uncertainty as field observations are scarce


One of the challenging aspects is the lack of consistent measurement methods that allow for comparing rivers over space and time. 


Recent studies have shown that simple visual observations provide a robust first-order characterization of floating and superficially suspended plastic transport, both in quantity, spatiotemporal distribution and composition


For this study, we applied this method to the river Seine, France, to provide new insights in the spatiotemporal variation in riverine plastic transport. 


First, we studied the response of plastic flow to increased river discharge by comparing measurements taken during low flow and high flow periods


Second, we investigated the variation of riverine plastic transport over the river length to improve our understanding of the origin and fate of riverine plastics


We demonstrate that during a period with higher river discharge, plastic transport increased up to a factor ten at the observation point closest to the river mouth


This suggests that the plastic emission into the ocean from the Seine may also be considerably higher during increased discharge. 


Upstream of Paris plastic transport increased only with a factor 1.5, suggesting that most plastics originate from Paris or areas further downstream.


With this paper[,] we aim to shed additional light on the seasonal variation inriverine plastic transport and its distribution along the river length, which may benefit future long-term monitoring efforts and plastic pollution mitigation strategies.


评论:有心人可能会发现我现在比较偏爱绿色。是的。我发现 我的写作课激发了学生的“找错“能力。事实上,他们更需要 好好学习。

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