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题名: Using the Asian clam as an indicator of microplastic pollution in freshwater ecosystems
作者: Su, Lei1; Cai, Huiwen1; Kolandhasamy, Prabhu1; Wu, Chenxi2; Rochman, Chelsea M.3; Shi, Huahong1
关键词: Microplastic ; Freshwater ; Asian clam ; Bioindicator ; Sediment
刊名: ENVIRONMENTAL POLLUTION
发表日期: 2018-03-01
DOI: 10.1016/j.envpol.2017.11.075
卷: 234, 页:347-355
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: Bioindicators play an important role in understanding pollution levels, bioavailability and the ecological risks of contaminants. Several bioindicators have been suggested for understanding microplastic in the marine environment. A bioindicator for microplastics in the freshwater environment does not exist. In our previous studies, we found a high frequency of microplastic pollution in the Asian clam (Corbicula fluminea) in Taihu Lake, China. In the present study, we conducted a large-scale survey of microplastic pollution in Asian clams, water and sediment from 21 sites in the Middle-Lower Yangtze River Basin from August to October of 2016. The Asian clam was available in all sites, which included diverse freshwater systems such as lakes, rivers and estuaries. Microplastics were found at concentrations ranging from 0.34.9 items/g (or 0.4-5.0 items/individual) in clams, 0.5-3.1 items/L in water and 15-160 items/kg in sediment. Microfibers were the most dominant types of microplastics found, accounting for 60-100% in clams across all sampling sites. The size of microplastics ranged from 0.021-4.83 mm, and microplastics in the range of 0.25-1 mm were dominant. The abundance, size distribution and color patterns of microplastics in clams more closely resembled those in sediment than in water. Because microplastic pollution in the Asian clam reflected the variability of microplastic pollution in the freshwater environments, we demonstrated the Asian clam as an bioindicator of microplastic pollution in freshwater systems, particularly for sediments. (C) 2017 Elsevier Ltd. All rights reserved.
关键词[WOS]: CORBICULA-FLUMINEA MULLER ; MARINE-ENVIRONMENT ; YANGTZE-RIVER ; CHINA ; INGESTION ; LAKE ; SEA ; ACCUMULATION ; ORGANISMS ; BIVALVES
语种: 英语
项目资助者: Natural Science Foundation of China(21507031 ; National Key Research and Development(2016YFC1402204) ; 41571467)
WOS记录号: WOS:000426225100036
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/342005/50678
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.East China Normal Univ, State Key Lab Estuarine & Coastal Res, Shanghai 200062, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Hubei, Peoples R China
3.Univ Toronto, Dept Ecol & Evolutionary Biol, Toronto, ON, Canada
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