AQI
noun/ˌeɪ kjuː ˈaɪ/
/ˌeɪ kjuː ˈaɪ/
- a measure of how polluted the air is (the abbreviation for air quality index)
- The average 24-hour AQI was 370 on Wednesday.
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AQI
Definition of AQI noun from the Oxford Advanced Learner's Dictionary