Delhi Chokes: 'Severe' AQI, Dense Fog Disrupt Flights, Trains; GRAP Stage-IV Invoked

• Delhi's Air Quality Index (AQI) remained in the 'severe' category at 439, with several monitoring stations reporting alarmingly high readings.
• The Commission for Air Quality Management (CAQM) reinvoked Stage-IV measures under GRAP across Delhi-NCR due to hazardous air quality.
• GRAP-IV bans non-essential trucks, imposes stricter curbs on construction/demolition, and intensifies preventive action.
• Dense fog reduced visibility to near zero, shrouding landmarks like India Gate and Kartavya Path, and disrupting transport.
• Flights at Indira Gandhi International Airport and numerous long-distance trains faced significant delays; schools shifted to hybrid mode.

Why It Matters: Delhi faces severe air pollution and dense fog, leading to GRAP Stage-IV invocation and widespread disruptions.