New Delhi, November 13
Delhi recorded a jump in pollution levels and a smoky haze returned on Monday morning after residents flouted the ban on firecrackers on Diwali night. The city recorded its best air quality on Diwali day in eight years on Sunday, with its 24-hour average Air Quality Index (AQI) standing at 218 at 4 pm.
However, firecracker bursting till late Sunday night led to a spike in pollution levels amid low temperatures.
At 7 am, the AQI stood at 275 (poor category). Pollution levels even entered the very poor category in some areas, including Shadipur (315), Ayanagar (311), Lodhi Road (308), Pusa (355) and Jahangirpuri (333).
The concentration of PM2.5, fine particulate matter that can penetrate deep into the respiratory system and trigger respiratory problems, exceeded the safe limit of 60 microgramme per cubic metre by six to seven times in these areas.