C1246 字2:00新闻报道美国腔发布于 2026年7月9日 · 更新于 2026年7月9日

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Scientists have for the first time identified nanoplastics in Antarctic soil, providing compelling evidence that microscopic particles of plastic pollution can traverse the atmosphere and contaminate even the most isolated regions on Earth.

科学家首次在南极土壤中发现了纳米塑料，这提供了令人信服的证据，证明微小的塑料污染颗粒可以穿越大气层，甚至污染地球上最孤立的地区。

The groundbreaking study, published in the journal Nanoplastics, revealed that soil samples collected from the McMurdo Dry Valleys contained debris from tire wear alongside five other commonly manufactured polymers.

这项发表于《微塑料》期刊的开创性研究显示，从麦克默多干燥谷采集的土壤样本中，含有轮胎磨损产生的碎屑以及其他五种常见合成聚合物。

Researchers emphasized that this discovery fundamentally challenges the assumption that remote, uninhabited environments remain untouched by industrial contamination.

研究人员强调，这一发现从根本上挑战了偏远、无人居住的环境仍未受到工业污染影响的假设。

The McMurdo Dry Valleys, situated among the coldest and driest landscapes on Earth, had long been considered virtually pristine.

麦克默多干燥谷坐落于地球上最寒冷且最干燥的地貌之中，长期以来一直被认为几乎是一尘不染的纯净之地。

Yet the presence of synthetic polymers in this barren terrain suggests that atmospheric transport carries nanoplastics across vast distances, far beyond densely populated or industrialized zones.

然而，在这片荒凉的土地上，合成聚合物的存在表明，大气传输将纳米塑料带到了遥远的地方，远远超出了人口稠密或工业化的地区。

The researchers cautioned that both long-range atmospheric currents and localized human activity at nearby research stations may have contributed to the contamination.

研究人员警告，远距离的大气环流和附近研究站的局部人类活动，都可能加剧了这次的污染。

Were it not for advanced detection techniques, these infinitesimally small particles might have gone entirely unnoticed.

若非有先进的检测技术，这些微小至极的粒子可能就完全不被察觉了。

While microplastics have dominated environmental discourse in recent years, experts argue that nanoplastics pose a substantially greater threat.

虽然微塑料在近年来主导了环境议题的讨论，但专家指出，纳米塑料所带来的威胁显著更大。

Measuring less than one micron in diameter, these microscopic particles can become suspended in the atmosphere with remarkable ease, penetrate biological cell membranes, and serve as carriers for additional toxic contaminants.

这些微小粒子的直径小于一微米，极易悬浮在大气中，穿透生物细胞膜，并作为其他有毒污染物的载体。

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Not only have nanoplastics been detected in remote locations such as Greenland and the Alps, but they have now reached the Antarctic interior, a finding that underscores the truly global scale of plastic pollution.

纳米塑料不仅在格陵兰和阿尔卑斯山等偏远地区被检测到，而且现在已经到达了南极内陆，这一发现强调了塑料污染真正具有全球性的规模。

片语表 (4 个片语)

片语包含类型标示、双语定义、用法说明和例句。

nanoplastics

technical term

Extremely small plastic particles, typically defined as being less than 100 nanometers (or 1 micron) in size, resulting from the degradation of larger plastic items.

纳米塑料

解释： 指尺寸极小的塑料微粒（通常小于1微米）。在环境科学中，这是一个新兴的专业术语，用以区分比微塑料（microplastics）更小、更具穿透力且危害更大的塑料污染颗粒。

范例： Due to their tiny size, nanoplastics can easily enter the food chain and accumulate in organisms.

atmospheric transport

technical term

The movement of chemical substances, pollutants, or particles through the Earth's atmosphere from one location to another.

大气传输 / 大气输送

解释： 气象学与环境科学术语，指污染物、微粒或化学物质借由风向与气流在大气中跨区域移动的过程。此词强调污染并非仅限于局部，而是会跨国界或跨区域传播。

范例： The study suggests that heavy metals are carried to the Arctic via long-range atmospheric transport.

Were it not for

idiom

If it were not for; used to say that something would have happened or been true if a particular person or thing had not prevented it.

要不是因为……、若非有……

解释： 这是一个高阶的虚拟语气倒装句型（原句为 If it were not for...）。用来假设某个过去或现在存在的条件若不存在，将会导致完全不同的结果。语气较为正式且具文学色彩。

范例： Were it not for your timely advice, I would have made a terrible mistake.

pose a threat

collocation

To present or constitute a danger or risk to someone or something.

构成威胁

解释： 动词 pose 与名词 threat 的经典搭配。相较于单纯使用 threaten，pose a threat (to) 在写作中显得更为正式且具客观陈述的语气，常用于描述环境、健康、国家安全等方面的潜在危险。

范例： Rising sea levels pose a significant threat to coastal communities around the world.

Antarctica: Scientists have discovered nanoplastics, including tire wear particles, in Antarctic...南极洲：科学家在南极发现了纳米塑料，包括轮胎磨损颗粒……

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