| Hangul | 초미세먼지 |
| Romanization | chomisemeonji |
| Meaning | ultra-fine dust; PM2.5 particulate matter |
| Part of Speech | noun |
| TOPIK Level | TOPIK Level 4 |
초미세먼지 농도가 위험 수준에 달했어요.
chomisemeonji nongdo-ga wiheom sujun-e dalhaesseoyo.
The concentration of ultra-fine dust reached a dangerous level.
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초미세먼지 (chomisemeonji) means "ultra-fine dust; PM2.5 particulate matter" in Korean. It is a TOPIK Level 4 vocabulary word.
초미세먼지 is pronounced "chomisemeonji" in Revised Romanization.
초미세먼지 is a TOPIK Level 4 word. TOPIK Level 4 is the upper-intermediate level with ~5,000 words.