Healthcare Delhi's air quality improves marginally as wind speed picks up, likely to turn 'very poor' by Wednesday Updated : October 20, 2020 11:26 AM IST The city recorded an air quality index (AQI) of 227 at 9 am on Tuesday. The 24-hour average AQI was 244 on Monday. Subscribe to Moneycontrol PRO at just Rs.33/- per month for the first year. Use code SUPERPRO. Limited period offer. Available on Web and Android.