| 单词 | air quality index |
| 释义 | air quality index Others condemned his decision not to wear a mask on a day when the air quality index was so hazardous. Times, Sunday Times They found the risk of stroke was 34 per cent higher when the air quality index was amber instead of green. Times, Sunday Times These indices were then weighted and summed to form a single total air quality index. Retrieved from Wikipedia CC BY-SA 3.0 The initial iteration of the air quality index used standardized ambient pollutant concentrations to yield individual pollutant indices. Retrieved from Wikipedia CC BY-SA 3.0 Different countries have their own air quality indices which are not all consistent. Retrieved from Wikipedia CC BY-SA 3.0 |
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