India, Dec. 29 -- Delhi woke up to another day of hazardous air on Sunday as pollution levels surged across the city, pushing the Air Quality Index (AQI) deep into the 'very poor' category and triggering fresh health concerns for residents.

According to data from the Central Pollution Control Board (CPCB), the city's overall AQI stood at 390.

The meteorological department has issued an orange alert of very dense fog for Monday, with maximum and minimum temperatures likely to hover around 22 and 7 degrees Celsius, respectively.

According to data on the CPCB's Sameer App, 19 monitoring stations in Delhi reported air quality in the "severe" category, with Anand Vihar recording the highest AQI of 457, while the remaining recorded "very poo...