New Delhi, Jan. 4 -- Delhi's air quality continued to remain in the 'poor' category on Sunday, with the national capital recording an overall Air Quality Index (AQI) of 248, according to data from the Central Pollution Control Board (CPCB). The deteriorating air caused breathing discomfort to most people on prolonged exposure, even as residents woke up to a chilly and windy morning.

Several key monitoring stations across the city reported AQI levels in the 'very poor' range. Anand Vihar recorded an AQI of 350, Rohini 361, Chandni Chowk 355, Mundka 329 and R.K. Puram 322, while ITO registered an AQI of 309. Air quality was comparatively better at NSIT Dwarka and the Indira Gandhi International (IGI) Airport, both recording an AQI of 177, ...