A layer of smog covered the national capital Monday morning and the air quality was recorded in the "very poor" category with an average AQI of 358 at 9 am, according to Central Pollution Control Board (CPCB) data. Data from the CPCB's Sameer App, which provides hourly AQI updates, showed that the

Delhi air quality: Delhi's air quality reaches severe levels, blamed on stubble-burning, Diwali fireworks, and low wind speed.

Delhi's AQI at 387, 'very poor' category, with 18 stations in 'severe' zone, misty morning, max temp 32°C.