New Delhi, Dec. 1 -- After briefly breaking a 24-day streak of 'very poor' air on Sunday, when the city's AQI improved to 279, Delhi's air quality slipped back on Monday, returning to the 'very poor' category.
At 4 pm on Monday, the 24-hour rolling average air quality index (AQI) for Delhi stood at 304, according to data from the Central Pollution Control Board (CPCB).
As per the CPCB classification, air quality readings between 300-400 fall under the 'very poor' category, which causes respiratory illness on prolonged exposure.
Experts attributed the surge in pollutant levels to meteorological factors, including calmer winds and low temperatures.
On Monday, the city recorded a significant dip in the mercury levels with a minimum for Del...