| 词汇 | microplastics |
| 释义 | microplastics noun[ plural ] uk /ˈmaɪ.krəʊˌplæs.tɪks/ us /ˈmaɪ.kroʊˌplæs.tɪks/(also microplastic[ U ]) extremely small pieces of plastic that are harmful to the environment, used in cosmetics(= substances put on the face or body to improve appearance), or formed when plastic waste material breaks down: 微塑料，塑料微粒 Microplastics typically come from plastic used in exfoliating face and body products.塑料微粒通常来自用于去角质的面部和身体产品中所含的塑料。 pawopa3336/iStock/Getty Images Plus/GettyImages Tiny fragments of 5 mm or less are called microplastics and are particularly dangerous as they can absorb toxic chemicals which are transported to marine animals when ingested. The group plans to investigate how the microbial interaction with microplastics varies across different habitats within the coastal seabed. An example of a larger product that turns into microplastic over time could be a plastic bag that is degraded to smaller and smaller pieces in the course of months or years. Due to its size and variety of sources, the characterization of microplastic is even more complex than for large plastic debris. Plastics & rubber Bakelite bioplastic Bubble Wrap Cellophane celluloid injection moulding latex Lucite melamine microbeads polypropylene polystyrene polythene polyurethane polyvinyl chloride thermosetting uPVC vinyl vulcanization vulcanized Examples of microplasticsmicroplastics It is not clear, however, if microplastics play a larger role as chemical reservoirs on smaller scales. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Microplastics may sink, threatening filter feeders on the seabed. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It remains unknown if microplastics may be transferred across trophic levels. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Toxic microplastics can be swallowed by using this toothpaste. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In contrast, microplastics are not as conspicuous, being less than 5 mm. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Ingestion of microplastics by species at the base of the food web causes concern as little is known about its effects. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Microplastics and nanosilver materials flowing and cycling through ecosystems from pollution and discarded technology are among a growing list of emerging ecological concerns. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. When fleece goes through the laundry, it generates microplastics which become part of domestic waste water. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The breakdown of lines, especially in strimmers, leads to microplastics which may cause starvation or poisoning of organisms in soil or water. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Elmex also contains microplastics, endangering the environment. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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