New Delhi, Oct. 22 -- Delhiites woke up to a hazy morning a day after Diwali as the city's air quality plunged to the 'severe' category on Tuesday.
According to data from the Central Pollution Control Board (CPCB), the national capital recorded the worst air among all metros following a night of festive celebrations.
At 4 p.m., Delhi's 24-hour average Air Quality Index (AQI) stood at 351, placing it in the 'very poor' category.
Mumbai followed next, with PM2.5 as the main pollutant and an AQI of 211, categorised as 'poor'.
Other metros fared better - Kolkata (174), Chennai (142), and Hyderabad (116) all recorded 'moderate' air quality levels. Bengaluru was the only major city with air quality in the 'satisfactory' range, recording an AQ...