How much did the air improve this November?

8% compared to the six-year average ending 2021. This made the air in November 2022 the second-best in any November since 2016. To be sure, the beginning and the end of the month were far from good. The first week, on average, was the second-worst since 2016, which is also true for each of the last three days of the month. If not for such days, this could have been the best November air Delhi has experienced since 2016. Daily AQI data shows that the 2022 AQI level was the best in the past seven years on eight days, second best on six days, and third best on seven days. All 21 of these days were in the November 5-November 25 period.