Overview
- CPCB data showed Delhi’s 24-hour AQI rebounded to roughly 305–310 by Friday morning, up from 234 on Thursday after two days of improvement.
- The deterioration followed a drop in wind speeds and the return of foggy conditions that limit dispersion, with several hotspots such as Anand Vihar nearing 390.
- CAQM revoked Stage IV of the Graded Response Action Plan on Wednesday after the short-lived improvement, while Stages I–III remain in force.
- Official source-attribution indicates vehicles contributed around 18% of PM2.5 on recent days, with nearby Haryana districts such as Jhajjar adding a significant share to Delhi’s load.
- IMD and IITM warning systems project ‘very poor’ air over the coming days, as Delhi maintains intensified PUC checks, traffic enforcement and plans six new monitoring stations.