New Delhi, Dec. 14 -- Toxic smog blanketed the national capital on Sunday, breaching the 'severe plus' category in the early hours. Acrid smell persisted in the air as the pollutants trapped in the lower surface due to stagnant winds left residents with breathing discomfort, burning eyes, and other respiratory issues.

At 6 AM on Sunday, the air quality index of the national capital touched 462, according to the data recorded by the Central Pollution Control Board (CPCB), falling in the 'severe plus' category.

As per CPCB's classification, an AQI between 400 and 450 is considered 'severe', posing health risks even to healthy individuals and causing serious respiratory issues among those with pre-existing conditions. While the AQI levels ab...