Delhi on IMD’s cold wave alert, AQI plummets to ‘severe+’ levels, hits 489 in Anand Vihar as toxic smog shrouds capitalUncategorized Delhi’s air quality plummeted to ‘severe+’ levels as cold wave swept the city. Toxic smog blanketed the capital on Sunday morning as AQI hit 489 in Anand Vihar. Low visibility disrupted flight operations. IMD has issued cold wave alert.
