The revelry took the air quality index above 350 at most stations. The AQI for Anand Vihar was 386 at 11 pm on the night of October 31 â much higher than last year's 302 on Diwali night.
The average air quality index (AQI) was recorded 235 at 11am. (HT photo) The average air quality index (AQI) was recorded 235 at 11am. AQI was 234 at 4pm on Tuesday, according to the 24-hour ...
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