Global S&T Development Trend Analysis Platform of Resources and Environment
Microplastics ‘abundant’ in remote polar seas | |
admin | |
2020-10-23 | |
发布年 | 2020 |
语种 | 英语 |
国家 | 英国 |
领域 | 资源环境 |
正文(英文) | Microplastic pollution exists on the seabed in Antarctica in the same quantities as in the North Atlantic and Mediterranean, scientists have found. A study from researchers at Liverpool John Moores University (LJMU), Queen’s University Belfast and British Antarctic Survey, took samples from remote parts of the Antarctic Peninsular, South Georgia and the Sandwich Islands. The research is published today (23 October) in the journal Environmental Science & Technology. The team discovered at least one particle of microplastic for every gram of sediment was found to be residing on the Antarctic seabed, similar to pollution rates other oceanic regions much closer to human activity and habitation. These were fragments, films, and fibres of the most commonly discarded polymers – polyester, polypropylene, and polystyrene – all often used in packaging.
Samples of the seabed were collected up to 3.6 km in depth by British Antarctic Survey scientist Dr Katrin Linse, who travelled to the Southern Ocean and Antarctica as part of a wider research project.
As to why the incidence of plastics is so high in such a remote location an open question. Theories range from ocean currents or the wind, to local activity (e.g. fishing) and possibly some internal biologically mediated mechanisms namely microplastics caught up by life forms and transported to depths. Sonja Ehlers, of the Federal Institute of Hydrology, said:
The team hopes the findings will help future efforts to measure the ecological and environmental damage that might be caused by these plastic fragments, by providing a more “robust measure” of its accumulation in remote parts of the ocean. Plastics can take hundreds of years to degrade. High abundances of microplastic pollution in deep-sea sediments: Evidence from Antarctica and the Southern Ocean by Eoghan M. Cunningham (LJMU & Queen’s), Sonja M. Ehlers (Federal Institute of Hydrology, Koblenz) , Jaimie T. A. Dick, Julia D. Sigwart (both Queen’s), Katrin Linse (British Antarctic Survey), Jon J. Dick, Konstadinos Kiriakoulakis (both LJMU) is published in the journal Environmental Science & Technology here.
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URL | 查看原文 |
来源平台 | British Antarctic Survey |
文献类型 | 新闻 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/299979 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | admin. Microplastics ‘abundant’ in remote polar seas. 2020. |
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