| Transport of microplastics in coastal seas |
| Zhang, H
|
| 发表期刊 | ESTUARINE COASTAL AND SHELF SCIENCE
 |
| ISSN | 0272-7714
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| 2017-12-05
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| 卷号 | 199页码:74-86 |
| 关键词 | Marine plastic debris
Coastal transport
Marine sediments
Particle transport
Turbulent mixing
Hydrodynamics
|
| 研究领域 | Marine & Freshwater Biology
; Oceanography
|
| DOI | 10.1016/j.ecss.2017.09.032
|
| 产权排序 | [Zhang, Hua] Chinese Acad Sci, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China |
| 作者部门 | 海岸带环境过程实验室
|
| 英文摘要 | Microplastic pollution of the marine environment has received increasing attention from scientists, the public, and policy makers over the last few years. Marine microplastics predominantly originate near the coast and can remain in the nearshore zone for some time. However, at present, there is little understanding of the fate and transport of microplastics in coastal regions. This paper provides a comprehensive overview of the physical processes involved in the movement of microplastics from estuaries to the continental shelf. The trajectory and speed of microplastics are controlled by their physical characteristics (density, size, and shape) and ocean dynamic conditions (wind, waves, tides, thermohaline gradients, and the influence of benthic sediments). Microplastic particles can be subjected to beaching, surface drifting, vertical mixing, and biofouling, as well as bed-load and suspended load transport processes, until reaching terminal deposition on beaches, in coastal marshes, in benthic sediments or until they are carried, by ocean currents to subtropical convergence zones. The dynamic interaction of released microplastics with the shoreline is regulated by onshore/offshore transport, which is impacted by the source location as well as the geometry, vegetation, tidal regime, and wave direction. Wind and wave conditions dominate surface drifting of buoyant particles through Ekman drift, windage, and Stokes drift mechanisms. Neustic microplastic particles travel in the subsurface because of vertical mixing through wind-driven Langmuir circulation and heat cycling. Increasing accumulation of microplastics in benthic sediments needs to be quantitatively explored in terms of biofouling, deposition, entrainment, and transport dynamics. Further studies are required to understand the following: 1) the primary parameters (e.g., windage, terminal velocity, diffusivity, critical shear stress) that determine microplastic transport in different pathways; 2) dynamic distribution of microplastics in various coastal landscapes (e.g., wetlands, beaches, estuaries, lagoons, barrier islands, depocenters) regulated by hydrodynamic conditions; and 3) interactions between the physical transport processes and biochemical reactions (degradation, flocculation, biofouling, ingestions). (C) 2017 Elsevier Ltd. All rights reserved. |
| 文章类型 | Article
|
| 资助机构 | National Key Research and Key Development Plan of China [2016YFC1402202]
; Key International Cooperation Program of the Chinese Academy of Sciences [ICYSB20160003]
|
| 收录类别 | SCI
|
| 语种 | 英语
|
| 关键词[WOS] | Marine plastic debris
; Coastal transport
; Marine sediments
; Particle transport
; Turbulent mixing
; Hydrodynamics
|
| 研究领域[WOS] | Marine & Freshwater Biology
; Oceanography
|
| WOS记录号 | WOS:000415776100007
|
| 引用统计 |
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| 文献类型 | 期刊论文
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| 条目标识符 | http://ir.yic.ac.cn/handle/133337/24345
|
| 专题 | 中国科学院海岸带环境过程与生态修复重点实验室_海岸带环境过程实验室
|
| 作者单位 | Chinese Acad Sci, Key Lab Coastal Zone Environm Proc & Ecol Remedia, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China
|
推荐引用方式
GB/T 7714 |
Zhang, H. Transport of microplastics in coastal seas[J]. ESTUARINE COASTAL AND SHELF SCIENCE,2017,199:74-86.
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| APA |
Zhang, H.(2017).Transport of microplastics in coastal seas.ESTUARINE COASTAL AND SHELF SCIENCE,199,74-86.
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| MLA |
Zhang, H."Transport of microplastics in coastal seas".ESTUARINE COASTAL AND SHELF SCIENCE 199(2017):74-86.
|
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