Nanoplastic
Definition / 释义
纳米塑料:尺寸极小的塑料颗粒或碎片,通常指小于约 1 微米(1000 纳米)的塑料污染物(具体界限在不同研究中可能略有差异)。它可来自较大塑料的进一步碎裂,或来自某些工业材料与产品添加物,因体积极小而更易在环境与生物体内迁移与累积。
Pronunciation / 发音(IPA)
/ˌnænoʊˈplæstɪk/
Examples / 例句
Nanoplastics have been found in seawater.
在海水中已经检测到纳米塑料。
Scientists worry that nanoplastics can enter cells and disrupt biological processes.
科学家担心纳米塑料可能进入细胞并干扰生物过程。
Etymology / 词源
由 **nano-**(“纳米;十亿分之一”,表示极小尺度的前缀,源自希腊语 nanos “矮小”)+ plastic(“塑料”,源自希腊语 plastikos “可塑的、能被塑形的”)组合而成。该词多用于环境科学与毒理学语境,用来强调塑料颗粒在“纳米尺度”的性质与风险。
Related Words / 相关词
Notable Works / 文献与作品中的用例
- From Pollution to Solution: A Global Assessment of Marine Litter and Plastic Pollution(UNEP,2021)
- Microplastics in Drinking-water(World Health Organization,2019)
- Statement on the presence of microplastics and nanoplastics in food, with particular focus on seafood(EFSA,2016)
- A Research Strategy for Ocean Plastics(National Academies of Sciences, Engineering, and Medicine,2021)