Overview
- CPCB recorded Delhi’s 24-hour average AQI at 307 on Sunday with peaks near 310 by evening, while early Monday readings hovered in the poor band around 260 even as many stations stayed in very poor territory.
- AQEWS projections indicate very poor air from Monday through midweek with a similarly poor outlook for the subsequent six days.
- IMD reported minimum temperatures between 6.6°C and 8.9°C across city stations and expects cold wave conditions at isolated places in Delhi through January 6.
- CAQM’s GRAP stage-3 curbs, revoked on Friday after a brief improvement, remain lifted as stages 1–2 continue, and IITM’s analysis points to transport and industry as leading PM2.5 contributors.
- Fog disrupted operations at IGI Airport, with officials reporting 20 arrivals and 23 departures cancelled by Sunday night and further delays reported on Monday morning.