科学家在南极新雪中发现微塑料
日期:2022-06-24 10:28

(单词翻译:单击)

BBC原文:

Scientists have for the first time found microplastics in freshly fallen Antarctic snow. Researchers from the University of Canterbury in New Zealand collected samples from 19 sites in Antarctica and each contained tiny plastic fragments. Microplastics stem from the erosion of plastic materials and are smaller than a grain of rice - sometimes even invisible to the naked eye.

科学家首次在南极新落下的雪中发现了微塑料。 来自新西兰坎特伯雷大学的研究人员从南极洲的19个地点收集了样本,每个地点都含有微小的塑料碎片。 微塑料源于塑料材料的腐蚀,比一粒米还小,有时肉眼甚至看不见。


重点表达:

microplastics n. 微塑料(是一种直径小于5毫米的塑料颗粒,是造成污染的主要载体。. 微塑料体积小,这就意味着更高的比表面积,比表面积越大,吸附的污染物的能力越强。)

Antarctic adj. 南极的

plastic fragments 塑料碎片

the erosion of plastic materials 塑料材料的腐蚀

invisible to the naked eye 肉眼不可见


Previous studies have found microplastic pollution in Antarctic sea ice and surface water, but this is the first reported case in fresh snow. A major study published in the Proceedings of the National Academy of Sciences last year said microplastics are spiralling across the globe, often transported by dusts, wind and ocean currents. In 2020, researchers found microplastics near the summit of Mount Everest. They have also been found in deep oceans.

此前的研究已经在南极海冰和地表水中发现了微塑料污染,但这是首次报道在新雪中发现微塑料污染。 去年发表在《美国国家科学院院刊》上的一项重大研究称,微塑料正在全球范围内螺旋上升,通常由灰尘、风和洋流输送。 2020年,研究人员在珠穆朗玛峰峰顶附近发现了微塑料。 它们也在深海中被发现。


重点表达:

microplastic pollution 微塑料污染

spiral across the globe 在全球范围内螺旋上升

ocean current 洋流

Mount Everest 珠穆朗玛峰(Mount Qomolangma)


【拓展】

1.global warming 全球变暖

例句:Microplastics may also be increasing the impact of global warming.

微塑料可能正在增加全球变暖的影响。

2.air pollution 空气污染

例句:Air pollution has risen above an acceptable level.

空气污染已经超标。

3.melting glacier 冰川融化

例句:Fast-melting glaciers on mountain ranges in different parts of the world are increasingly becoming hazards, leading to landslides and avalanches and causing glacial lakes to burst their banks.

世界各地山脉上快速融化的冰川正日益成为危险,导致山体滑坡和雪崩,并导致冰川湖决堤。

4.greenhouse gas 温室气体

例句:As a country's wealth grows, so do its greenhouse gas emissions.

随着一个国家财富的增长,它的温室气体排放也在增长。

5.carbon footprint 碳足迹(是指企业机构、活动、产品或个人通过交通运输、食品生产和消费以及各类生产过程等引起的 温室气体排放 的集合。)

例句:We all need to look for ways to reduce our carbon footprint.

我们都需要寻找减少我们碳足迹的办法。




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