Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1038/s41561-018-0080-1 |
Microplastic contamination of river beds significantly reduced by catchment-wide flooding | |
Hurley, Rachel; Woodward, Jamie; Rothwell, James J. | |
2018-04-01 | |
发表期刊 | NATURE GEOSCIENCE |
ISSN | 1752-0894 |
EISSN | 1752-0908 |
出版年 | 2018 |
卷号 | 11期号:4页码:251-+ |
文章类型 | Article |
语种 | 英语 |
国家 | England |
英文摘要 | Microplastic contamination of the oceans is one of the world's most pressing environmental concerns. The terrestrial component of the global microplastic budget is not well understood because sources, stores and fluxes are poorly quantified. We report catchment-wide patterns of microplastic contamination, classified by type, size and density, in channel bed sediments at 40 sites across urban, suburban and rural river catchments in northwest England. Microplastic contamination was pervasive on all river channel beds. We found multiple urban contamination hotspots with a maximum microplastic concentration of approximately 517,000 particles m(-2). After a period of severe flooding in winter 2015/16, all sites were resampled. Microplastic concentrations had fallen at 28 sites and 18 saw a decrease of one order of magnitude. The flooding exported approximately 70% of the microplastic load stored on these river beds (equivalent to 0.85 +/- 0.27 tonnes or 43 +/- 14 billion particles) and eradicated microbead contamination at 7 sites. We conclude that microplastic contamination is efficiently flushed from river catchments during flooding. |
领域 | 地球科学 ; 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000429131600016 |
WOS关键词 | FINE-GRAINED SEDIMENT ; SMALL PLASTIC DEBRIS ; SPATIAL-DISTRIBUTION ; MARINE-ENVIRONMENT ; SURFACE WATERS ; SUSPENDED SEDIMENT ; 1ST OBSERVATIONS ; BEACH SEDIMENTS ; ATLANTIC-OCEAN ; MAIN CHANNEL |
WOS类目 | Geosciences, Multidisciplinary |
WOS研究方向 | Geology |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/35030 |
专题 | 地球科学 气候变化 |
作者单位 | Univ Manchester, Dept Geog, Manchester, Lancs, England |
推荐引用方式 GB/T 7714 | Hurley, Rachel,Woodward, Jamie,Rothwell, James J.. Microplastic contamination of river beds significantly reduced by catchment-wide flooding[J]. NATURE GEOSCIENCE,2018,11(4):251-+. |
APA | Hurley, Rachel,Woodward, Jamie,&Rothwell, James J..(2018).Microplastic contamination of river beds significantly reduced by catchment-wide flooding.NATURE GEOSCIENCE,11(4),251-+. |
MLA | Hurley, Rachel,et al."Microplastic contamination of river beds significantly reduced by catchment-wide flooding".NATURE GEOSCIENCE 11.4(2018):251-+. |
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