Fog Nightmare: Visibility Drops to Zero Flights-Trains Delayed, Air Quality in 'Severe' Zone

Delhi chokes under ‘severe plus’ air quality amid dense fog

Delhi air quality remains in 'severe' category

Delhi-NCR chokes under dense smog as AQI peaks to 'severe' level

Delhi's air quality in 'very poor' category, AQI over 400 in many areas