Delhi’s air quality remained in the ‘poor’ category on Friday, with the AQI recorded at 277 at 7 am, according to the Central Pollution Control Board (CPCB). Areas like Anand Vihar (309), Dwarka Sec 8 (315), and Nehru Nagar (334) reported high pollution levels. Meanwhile, a thin fog covered the city as temperatures dropped to 6°C, as per IMD.