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题名: Microplastic pollution of lakeshore sediments from remote lakes in Tibet plateau, China
作者: Zhang, Kai1, 3; Su, Jing2; Xiong, Xiong1; Wu, Xiang2; Wu, Chenxi1; Liu, Jiantong1
关键词: Microplastics ; Northern Tibet ; Lakeshore sediment ; Distribution ; Identification ; Surface texture
刊名: ENVIRONMENTAL POLLUTION
发表日期: 2016-12-01
DOI: 10.1016/j.envpol.2016.05.048
卷: 219, 页:450-455
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Environmental Sciences
研究领域[WOS]: Environmental Sciences & Ecology
英文摘要: Tibetan Plateau is known as the world's third pole, which is characterized by a low population density with very limited human activities. Tibetan Plateau possesses the greatest numbers of high-altitude inland lakes in the world. However, no information is currently available on the characteristic of microplastic pollution in those lakes within this remote area. In this work, lakeshore sediments from four lakes within the Siling Co basin in northern Tibet were sampled and examined for microplastics (<5 mm). Microplastics were detected in six out of seven sampling sites with abundances ranging from 8 +/- 14 to 563 +/- 1219 items/m(2). Riverine input might have contributed to the high abundance of microplastics observed in this remote area. Morphological features suggest that microplastics are derived from the breakdown of daily used plastic products. Polyethylene, polypropylene, polystyrene, polyethylene terephthalate, and polyvinyl chloride were identified from the microplastic samples using laser Raman spectroscopy, and oxidative and mechanical weathering textures were observed on the surface of microplastics using scanning electron microscope. These results demonstrate the presence of micro plastics even for inland lakes in remote areas under very low human impact, and microplastic pollution can be a global issue. (C) 2016 Elsevier Ltd. All rights reserved.
关键词[WOS]: SPATIAL-DISTRIBUTION ; MARINE-ENVIRONMENT ; SUBTROPICAL GYRE ; PLASTIC DEBRIS ; GREAT-LAKES ; ACCUMULATION ; PACIFIC ; SHORELINES ; INGESTION ; BEACHES
语种: 英语
项目资助者: National Major Project for Basic Science and Technology Work(2014FY210700) ; State Key Laboratory of Freshwater Ecology and Biotechnology(2014FBZ03)
WOS记录号: WOS:000390734100051
ISSN号: 0269-7491
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内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/28770
Appears in Collections:水环境工程研究中心_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.China Univ Geosci, Sch Earth Sci, Wuhan 430074, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
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