Occurrence of microplastics in the water column and sediment in an inland sea affected by intensive anthropogenic activities

doi:10.1016/j.envpol.2018.07.131

CORC > 烟台海岸带研究所 > 中国科学院烟台海岸带研究所 > 中科院海岸带环境过程与生态修复重点实验室 > 近岸生态与环境实验室

	Occurrence of microplastics in the water column and sediment in an inland sea affected by intensive anthropogenic activities
	Dai ZF; Zhang HB; Zhou Q; Tian Y; Chen T; Tu C; Fu CC; Luo YM
刊名	Environmental Pollution
	2018
卷号	242 期号:B 页码:1557-1565
关键词	Bohai sea Microplastics Sediment Vertical distribution Water column
ISSN号	0269-7491
DOI	10.1016/j.envpol.2018.07.131
产权排序	1
文献子类	Article
英文摘要	Microplastics may lose buoyancy and occur in deeper waters and ultimately sink to the sediment and this may threaten plankton inhabiting in various water layers and benthic organisms. Here, we conduct the first survey on microplastics in the water column and corresponding sediment in addition to the surface water in the Bohai Sea. A total of 20 stations covering whole Bohai Sea were selected, which included 6 stations specified for water column studying. Seawater was sampled every 5 m, with maximal depth of 30 m in the water column using Niskin bottles coupled with a ship-based conductivity, temperature and depth sensor (CTD) system and surface sediment samples were collected using box corer. The results indicated that higher microplastic levels accumulated at a depth range of 5-15 m in the water column in some stations, suggesting the surface water survey was not sufficient to reflect microplastics loading in a water body. Fibers predominated microplastic types in both seawater and sediment of the Bohai Sea, which accounted for 75%-96.4% of the total microplastics. However the relatively proportion of the fibers in the deeper water layers and sediment was lower than that in the surface water. Microplastic shapes are more diverse in the sediment than in the seawater in general. The microplastic sizes changed with depth in the water column and the proportion of the size-fraction < 300 mu m increased with depth, probably as a result of rapid biofouling on the small microplastics due to their higher specific surface area. Such depth distribution also implied that sampling with manta net (>330 mu m) that commonly used in the oceanographic survey might underestimate microplastics abundance in the water column. Further studies are recommended to focus on the sinking behavior of microplastics and their effects on marine organisms. (C) 2018 Elsevier Ltd. All rights reserved.
WOS关键词	BOHAI SEA ; PLASTIC DEBRIS ; PACIFIC-OCEAN ; SURFACE-WATER ; BALTIC SEA ; CHINA ; ENVIRONMENT ; MARINE ; ECOSYSTEMS ; ABUNDANCE
WOS研究方向	Environmental Sciences
语种	英语
WOS记录号	WOS:000446282600056
内容类型	期刊论文
源URL	[http://ir.yic.ac.cn/handle/133337/24148]
专题	烟台海岸带研究所_近岸生态与环境实验室烟台海岸带研究所_中科院海岸带环境过程与生态修复重点实验室
通讯作者	Luo YM
推荐引用方式 GB/T 7714	Dai ZF,Zhang HB,Zhou Q,et al. Occurrence of microplastics in the water column and sediment in an inland sea affected by intensive anthropogenic activities[J]. Environmental Pollution,2018,242(B):1557-1565.
APA	Dai ZF.,Zhang HB.,Zhou Q.,Tian Y.,Chen T.,...&Luo YM.(2018).Occurrence of microplastics in the water column and sediment in an inland sea affected by intensive anthropogenic activities.Environmental Pollution,242(B),1557-1565.
MLA	Dai ZF,et al."Occurrence of microplastics in the water column and sediment in an inland sea affected by intensive anthropogenic activities".Environmental Pollution 242.B(2018):1557-1565.