Delhi Fog Red Alert: AQI Over 400, Flights & Trains Disrupted Across Cities

• Delhi under red alert for dense fog, sharply reduced visibility impacting daily life and worsening air quality.
• Delhi's AQI crosses 400 (Severe category), with Vivek Vihar (460), Anand Vihar (459), Rohini (445) among the worst.
• Flight operations severely hit at Delhi Airport; CAT-3 procedures activated due to 50m visibility.
• Airlines like IndiGo and Air India warn of cancellations/delays across North, East, Northeast India; offer rescheduling/refunds.
• Trains also delayed at New Delhi railway station due to the dense fog conditions.

Why It Matters: Dense fog and severe AQI cause major transport disruptions in Delhi and other Indian cities.